{"id":65281,"date":"2024-01-04T16:54:52","date_gmt":"2024-01-04T21:54:52","guid":{"rendered":"https:\/\/rheolution.com\/?p=65281"},"modified":"2026-08-13T12:28:22","modified_gmt":"2026-08-13T16:28:22","slug":"misurazione-dellassorbanza-cinetica-e-velocita-delle-reazioni-chimiche","status":"publish","type":"post","link":"https:\/\/rheolution.com\/it\/note-applicative\/misurazione-dellassorbanza-cinetica-e-velocita-delle-reazioni-chimiche\/","title":{"rendered":"CAPIRE L&#8217;ASSORBANZA: MISURARE LE VELOCIT\u00c0 DI REAZIONE IN CHIMICA"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"65281\" class=\"elementor elementor-65281 elementor-36525\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-70169fe e-flex e-con-boxed e-con e-parent\" data-id=\"70169fe\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-0778f1c elementor-widget elementor-widget-heading\" data-id=\"0778f1c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h6 class=\"elementor-heading-title elementor-size-default\">Nota applicativa | ABSOR.B\u2122<\/h6>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6607862 elementor-widget elementor-widget-heading\" data-id=\"6607862\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">MISURA DELLE VELOCIT\u00c0 DI REAZIONE CHIMICA CON L\u2019ASSORBANZA<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a5ef318 elementor-widget elementor-widget-text-editor\" data-id=\"a5ef318\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"raw_components--panel--3IcXg inspect_panels--inspectionPanel--3Wboz\"><div class=\"inspect_panels--copyableRow--2_PiZ inspect_panels--highlightRow--21P9S\"><div class=\"inspect_panels--propertyRowContent--7Y-mu inspect_panels--copyableRow--2_PiZ inspect_panels--highlightRow--21P9S\"><div class=\"inspect_panels--contentProperty--2Z1QI text--fontPos11--RSei3 text--_fontBase--YWDo0 ellipsis--ellipsisAfter8Lines--2rn32 ellipsis--_ellipsisAfterNLines--26JkZ\"><p>di <a href=\"https:\/\/www.linkedin.com\/in\/dimitria-camas\u00e3o-049002a2\/\" target=\"_blank\" rel=\"noopener\">Dimitria Camas\u00e3o<\/a> e CEP <a href=\"https:\/\/www.linkedin.com\/in\/no%C3%A9mie-deloire-954b7b174\/\" target=\"_blank\" rel=\"noopener\">Noemie Deloire<\/a>,<\/p><p><span style=\"font-weight: 400\">Applicazione<\/span><span style=\"font-weight: 400\"> Scienziati,<\/span> <a href=\"https:\/\/www.linkedin.com\/company\/1168758\" target=\"_blank\" rel=\"noopener\">Rheolution Inc.<\/a><\/p><\/div><\/div><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-848a888 elementor-widget__width-initial elementor-widget elementor-widget-heading\" data-id=\"848a888\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">Sintesi<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f95975b elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"f95975b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul><li>Le reazioni chimiche in cui sono coinvolti reagenti o prodotti colorati possono essere analizzate osservando le variazioni nel tempo della loro capacit\u00e0 di assorbimento a determinate lunghezze d&#8217;onda.<\/li><li><a href=\"https:\/\/rheolution.com\/products\/absor-b\/\" target=\"_blank\" rel=\"noopener\">ABSOR.B\u2122<\/a> ha misurato con precisione la cinetica di assorbanza di una miscela composta da colorante alimentare blu e candeggina.<\/li><li>L&#8217;equazione di velocit\u00e0 della reazione chimica tra il colorante blu e la candeggina \u00e8 stata determinata utilizzando la cinetica di assorbimento.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-cba8dea e-flex e-con-boxed e-con e-parent\" data-id=\"cba8dea\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-83c2ede elementor-widget elementor-widget-heading\" data-id=\"83c2ede\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">INTRODUZIONE ALLA MISURAZIONE DELL'ASSORBANZA NELL'ANALISI DELLE REAZIONI CHIMICHE<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-67d4a45 elementor-widget elementor-widget-heading\" data-id=\"67d4a45\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">Introduzione<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9a44079 elementor-widget elementor-widget-text-editor\" data-id=\"9a44079\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Le reazioni chimiche in cui uno dei reagenti o dei prodotti \u00e8 colorato possono essere monitorate misurando l\u2019assorbanza nel tempo. Ad esempio, le molecole di colorante possono reagire con sostanze specifiche, modificando la propria struttura chimica e, di conseguenza, la propria capacit\u00e0 di assorbire o riflettere la luce. Allo stesso modo, l\u2019attivit\u00e0 degli enzimi pu\u00f2 essere monitorata quando la reazione tra l\u2019enzima e il substrato porta alla formazione di un prodotto colorato. In questi due esempi, la velocit\u00e0 della reazione chimica pu\u00f2 essere rappresentata rispettivamente dalla scomparsa dei reagenti o dalla comparsa dei prodotti.   <\/p><p>Queste misurazioni (assorbanza nel tempo) forniscono informazioni sulla velocit\u00e0 di reazione e sull\u2019attivit\u00e0 dei reagenti. La velocit\u00e0 di reazione (o legge di velocit\u00e0) \u00e8 una descrizione matematica di come la velocit\u00e0 di una reazione chimica dipenda dalla concentrazione molare dei suoi reagenti. Determinare le leggi di velocit\u00e0 \u00e8 fondamentale per approfondire la comprensione delle reazioni chimiche, ottimizzare le condizioni di reazione e garantire una produzione efficiente e controllata dei prodotti desiderati in vari campi scientifici e industriali.  <\/p><p>In quest\u2019ottica, in questo studio abbiamo usato <a href=\"https:\/\/rheolution.com\/products\/absor-b\/\" target=\"_blank\" rel=\"noopener\">ABSOR.B\u2122<\/a> per studiare la cinetica della reazione tra un colorante alimentare (colorante blu) e l\u2019ipoclorito di sodio (candeggina). Lo ione ipoclorito (ClO-) \u00e8 un agente ossidante che sottrae uno o pi\u00f9 elettroni alle molecole del colorante, modificandone la struttura chimica, che di conseguenza non \u00e8 pi\u00f9 in grado di assorbire la luce nello spettro visibile. La diminuzione dell\u2019assorbanza durante la reazione \u00e8 stata misurata a due diverse concentrazioni di candeggina. I dati ottenuti sono stati poi utilizzati per determinare l\u2019equazione chimica che descrive la velocit\u00e0 di reazione.   <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bd5dbdc elementor-widget elementor-widget-heading\" data-id=\"bd5dbdc\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">APPROCCIO SPERIMENTALE ALLA MISURAZIONE DELL'ASSORBANZA IN CHIMICA\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-96c68e4 elementor-widget elementor-widget-heading\" data-id=\"96c68e4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">Materiali e metodi<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b1683b1 elementor-widget elementor-widget-text-editor\" data-id=\"b1683b1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400\">Il colorante alimentare (di colore blu) \u00e8 stato miscelato con ipoclorito di sodio (candeggina, NaClO) in fiale da 10 mL a due diverse concentrazioni (0,134 M e 0,269 M di ClO). Le fiale sono state subito inserite <a href=\"https:\/\/rheolution.com\/products\/absor-b\/\" target=\"_blank\" rel=\"noopener\">nell&#8217;ABSOR.B\u2122<\/a> <\/span> <span style=\"font-weight: 400\"> e i test sono stati effettuati a temperatura ambiente utilizzando la <\/span><span style=\"font-weight: 400\">cartuccia Emitt.635, la cartuccia ottica di emissione che emette luce alla lunghezza d\u2019onda di 635 nm (le componenti blu hanno il loro picco di assorbimento proprio intorno a questa lunghezza d\u2019onda)<\/span><span style=\"font-weight: 400\">. Per ogni campione sono stati rilevati i valori di assorbanza nel tempo (n=3 per ogni condizione). La legge di velocit\u00e0 \u00e8 stata calcolata sulla base della cinetica di assorbanza (1,2). <\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-27b5d0b elementor-widget elementor-widget-heading\" data-id=\"27b5d0b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">ANALISI DELLE VELOCIT\u00c0 DI REAZIONE TRAMITE MISURAZIONI DELL'ASSORBANZA<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-70a54d0 elementor-widget elementor-widget-heading\" data-id=\"70a54d0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">Risultati e discussione<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b725f4d elementor-widget elementor-widget-heading\" data-id=\"b725f4d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">Monitoraggio sperimentale della reazione chimica<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3a473e6 elementor-widget elementor-widget-text-editor\" data-id=\"3a473e6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>La Figura 1<\/strong> mostra i risultati per ciascuna concentrazione di ipoclorito di sodio miscelato con il colorante blu in triplicato (n=3). Come previsto, la reazione \u00e8 avvenuta pi\u00f9 rapidamente nel campione con la concentrazione pi\u00f9 alta di ipoclorito di sodio, come dimostra la diminuzione pi\u00f9 rapida dell\u2019assorbanza. Si nota inoltre l\u2019ottima ripetibilit\u00e0 dei risultati tra le repliche per ciascuna condizione. L\u2019intrinseca variabilit\u00e0 intrinseca dei tessuti animali e il numero ridotto di campioni (n=3) rafforzano l\u2019elevata ripetibilit\u00e0 e sensibilit\u00e0 dei risultati.   <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1f2d812 elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"1f2d812\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-style: normal;font-weight: bold;font-size: 16px;font-family: &apos;Red Hat Text&apos;, sans-serif\">Figura 1: Assorbanza <\/span>(Abs) di un colorante blu per uso alimentare in funzione del tempo, dopo la miscelazione con ipoclorito di sodio a 0,269 M (arancione) e 0,134 M (turchese).<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3f10b94 elementor-widget elementor-widget-image\" data-id=\"3f10b94\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"768\" height=\"672\" src=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig1-copy.png?fit=768%2C672&amp;ssl=1\" class=\"attachment-medium_large size-medium_large wp-image-65282\" alt=\"Graph showing faster absorbance decrease with higher sodium hypochlorite concentrations and consistent repeatability across triplicates.\" srcset=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig1-copy.png?w=1149&amp;ssl=1 1149w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig1-copy.png?resize=300%2C263&amp;ssl=1 300w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig1-copy.png?resize=1024%2C897&amp;ssl=1 1024w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig1-copy.png?resize=768%2C672&amp;ssl=1 768w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig1-copy.png?resize=86%2C75&amp;ssl=1 86w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig1-copy.png?resize=480%2C420&amp;ssl=1 480w\" sizes=\"(max-width:767px) 700px, (max-width:768px) 100vw, 768px\" data-attachment-id=\"65282\" data-permalink=\"https:\/\/rheolution.com\/it\/note-applicative\/misurazione-dellassorbanza-cinetica-e-velocita-delle-reazioni-chimiche\/attachment\/fig1-copy-4\/\" data-orig-file=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig1-copy.png?fit=1149%2C1006&amp;ssl=1\" data-orig-size=\"1149,1006\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"faster absorbance\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig1-copy.png?fit=1024%2C897&amp;ssl=1\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-73f994f elementor-widget elementor-widget-heading\" data-id=\"73f994f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">Modellizzazione teorica della reazione chimica<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-064b856 elementor-widget elementor-widget-text-editor\" data-id=\"064b856\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400\">Questa reazione chimica con i suoi coefficienti stechiometrici (<\/span><i><span style=\"font-weight: 400\">m<\/span><\/i><span style=\"font-weight: 400\"> e <\/span><i><span style=\"font-weight: 400\">n<\/span><\/i><span style=\"font-weight: 400\">) pu\u00f2 essere rappresentata come segue:<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-16c7887 elementor-widget elementor-widget-image\" data-id=\"16c7887\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"369\" height=\"28\" src=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_0.png?fit=369%2C28&amp;ssl=1\" class=\"attachment-large size-large wp-image-65283\" alt=\"m Blue dye + n hypochlorite = products\" srcset=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_0.png?w=369&amp;ssl=1 369w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_0.png?resize=300%2C23&amp;ssl=1 300w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_0.png?resize=150%2C11&amp;ssl=1 150w\" sizes=\"(max-width:767px) 369px, 369px\" data-attachment-id=\"65283\" data-permalink=\"https:\/\/rheolution.com\/it\/note-applicative\/misurazione-dellassorbanza-cinetica-e-velocita-delle-reazioni-chimiche\/attachment\/chemical_reactions_absorb_eqt_0-4\/\" data-orig-file=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_0.png?fit=369%2C28&amp;ssl=1\" data-orig-size=\"369,28\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"m Blue dye\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_0.png?fit=369%2C28&amp;ssl=1\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8fa1685 elementor-widget elementor-widget-text-editor\" data-id=\"8fa1685\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400\">L&#8217;equazione di velocit\u00e0 di questa reazione, in funzione della concentrazione molare dei suoi reagenti, si pu\u00f2 scrivere cos\u00ec:<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1210ab8 elementor-widget elementor-widget-image\" data-id=\"1210ab8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"703\" height=\"35\" src=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_1.png?fit=703%2C35&amp;ssl=1\" class=\"attachment-large size-large wp-image-65284\" alt=\"rate = k [blue dye]m[hypochlorite]n\" srcset=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_1.png?w=703&amp;ssl=1 703w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_1.png?resize=300%2C15&amp;ssl=1 300w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_1.png?resize=150%2C7&amp;ssl=1 150w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_1.png?resize=480%2C24&amp;ssl=1 480w\" sizes=\"(max-width:767px) 700px, 703px\" data-attachment-id=\"65284\" data-permalink=\"https:\/\/rheolution.com\/it\/note-applicative\/misurazione-dellassorbanza-cinetica-e-velocita-delle-reazioni-chimiche\/attachment\/chemical_reactions_absorb_eqt_1-4\/\" data-orig-file=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_1.png?fit=703%2C35&amp;ssl=1\" data-orig-size=\"703,35\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"k [blue dye]\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_1.png?fit=703%2C35&amp;ssl=1\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ca71eeb elementor-widget elementor-widget-text-editor\" data-id=\"ca71eeb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Dove <strong>k<\/strong> \u00e8 la costante di velocit\u00e0 (specifica per una determinata reazione e temperatura), mentre <strong>m<\/strong> e <strong>n<\/strong> sono gli esponenti che definiscono l&#8217;ordine di reazione.<\/p><p>In questo esperimento, l&#8217;ipoclorito di sodio era in forte eccesso rispetto al colorante blu. Di conseguenza, la sua concentrazione non \u00e8 cambiata in modo significativo durante questa reazione chimica, quindi pu\u00f2 essere considerata approssimativamente costante. <\/p><p>Per determinare innanzitutto l\u2019esponente <strong>m<\/strong> e dato che in questo esperimento la concentrazione di ipoclorito pu\u00f2 essere considerata approssimativamente costante, la pseudo-costante di velocit\u00e0 (k\u2019) pu\u00f2 quindi essere calcolata come segue:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-402c5c2 elementor-widget elementor-widget-image\" data-id=\"402c5c2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"703\" height=\"32\" src=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_2.png?fit=703%2C32&amp;ssl=1\" class=\"attachment-large size-large wp-image-65285\" alt=\"k [hypochlorite]n\" srcset=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_2.png?w=703&amp;ssl=1 703w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_2.png?resize=300%2C14&amp;ssl=1 300w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_2.png?resize=150%2C7&amp;ssl=1 150w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_2.png?resize=480%2C22&amp;ssl=1 480w\" sizes=\"(max-width:767px) 700px, 703px\" data-attachment-id=\"65285\" data-permalink=\"https:\/\/rheolution.com\/it\/note-applicative\/misurazione-dellassorbanza-cinetica-e-velocita-delle-reazioni-chimiche\/attachment\/chemical_reactions_absorb_eqt_2-4\/\" data-orig-file=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_2.png?fit=703%2C32&amp;ssl=1\" data-orig-size=\"703,32\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"hypochlorite\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_2.png?fit=703%2C32&amp;ssl=1\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-64fb36b elementor-widget elementor-widget-text-editor\" data-id=\"64fb36b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400\">Quindi la legge di velocit\u00e0 pu\u00f2 essere riscritta come:<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-639d0da elementor-widget elementor-widget-image\" data-id=\"639d0da\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"703\" height=\"32\" src=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_3.png?fit=703%2C32&amp;ssl=1\" class=\"attachment-large size-large wp-image-65286\" alt=\"rate = k&apos; [blue dye]m\" srcset=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_3.png?w=703&amp;ssl=1 703w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_3.png?resize=300%2C14&amp;ssl=1 300w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_3.png?resize=150%2C7&amp;ssl=1 150w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_3.png?resize=480%2C22&amp;ssl=1 480w\" sizes=\"(max-width:767px) 700px, 703px\" data-attachment-id=\"65286\" data-permalink=\"https:\/\/rheolution.com\/it\/note-applicative\/misurazione-dellassorbanza-cinetica-e-velocita-delle-reazioni-chimiche\/attachment\/chemical_reactions_absorb_eqt_3-4\/\" data-orig-file=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_3.png?fit=703%2C32&amp;ssl=1\" data-orig-size=\"703,32\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"blue dye\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_3.png?fit=703%2C32&amp;ssl=1\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-566e319 elementor-widget elementor-widget-text-editor\" data-id=\"566e319\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400\">Tracciando i grafici di Abs in funzione del tempo, ln(Abs) in funzione del tempo e 1\/Abs in funzione del tempo, puoi determinare l&#8217;ordine di reazione del colorante blu. Se: <\/span><\/p><p>  &#8211; Il rapporto tra Abs e tempo \u00e8 lineare: reazione di ordine zero (<strong>m<\/strong> = 0)<\/p><p>  &#8211; ln(Abs) in funzione del tempo \u00e8 lineare: reazione di primo ordine (<strong>m<\/strong> = 1)<\/p><p>  &#8211; 1\/Abs al tempo \u00e8 lineare: reazione di secondo ordine (<strong>m<\/strong> = 2)<\/p><p><span style=\"font-style: normal;font-weight: bold;font-size: 16px;font-family: &apos;Red Hat Text&apos;, sans-serif\">Figura 2<\/span><span style=\"font-family: &apos;Red Hat Text&apos;, sans-serif;font-size: 16px;font-style: normal;font-weight: 400\"> mostra che il valore di R\u00b2 pi\u00f9 alto \u00e8 stato ottenuto dalle curve ln(Abs) in funzione del tempo (R\u00b2 &gt; 0,99); si tratta quindi di una reazione di primo ordine per quanto riguarda il colorante blu (<\/span><span style=\"font-style: normal;font-weight: bold;font-size: 16px;font-family: &apos;Red Hat Text&apos;, sans-serif\"><i>m<\/i><\/span><span style=\"font-family: &apos;Red Hat Text&apos;, sans-serif;font-size: 16px;font-style: normal;font-weight: 400\">  = 1). Inoltre, la pseudo-costante (k\u2019) \u00e8 pari al negativo della pendenza della retta di regressione lineare. Con queste informazioni, puoi calcolare la costante della legge di velocit\u00e0 (  <\/span><span style=\"font-style: normal;font-weight: bold;font-size: 16px;font-family: &apos;Red Hat Text&apos;, sans-serif\">k<\/span><span style=\"font-family: &apos;Red Hat Text&apos;, sans-serif;font-size: 16px;font-style: normal;font-weight: 400\">), come segue:<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3217067 elementor-widget elementor-widget-image\" data-id=\"3217067\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"702\" height=\"67\" src=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_4.png?fit=702%2C67&amp;ssl=1\" class=\"attachment-large size-large wp-image-65287\" alt=\"\" srcset=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_4.png?w=702&amp;ssl=1 702w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_4.png?resize=300%2C29&amp;ssl=1 300w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_4.png?resize=150%2C14&amp;ssl=1 150w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_4.png?resize=480%2C46&amp;ssl=1 480w\" sizes=\"(max-width:767px) 700px, 702px\" data-attachment-id=\"65287\" data-permalink=\"https:\/\/rheolution.com\/it\/note-applicative\/misurazione-dellassorbanza-cinetica-e-velocita-delle-reazioni-chimiche\/attachment\/chemical_reactions_absorb_eqt_4-4\/\" data-orig-file=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_4.png?fit=702%2C67&amp;ssl=1\" data-orig-size=\"702,67\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Chemical\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_4.png?fit=702%2C67&amp;ssl=1\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-39be0ae elementor-widget elementor-widget-text-editor\" data-id=\"39be0ae\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400\">La costante di velocit\u00e0 (<strong>k<\/strong>) per questa reazione \u00e8 quindi 0,29 (M\u00b7s)\u207b\u00b9 e, utilizzando l&#8217;equazione 2, anche <strong>n<\/strong> \u00e8 pari a 1. Pertanto, la legge di velocit\u00e0 per questa reazione chimica pu\u00f2 essere scritta come: <\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cbfa38b elementor-widget elementor-widget-image\" data-id=\"cbfa38b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"340\" height=\"43\" src=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_5.png?fit=340%2C43&amp;ssl=1\" class=\"attachment-large size-large wp-image-65288\" alt=\"\" srcset=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_5.png?w=340&amp;ssl=1 340w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_5.png?resize=300%2C38&amp;ssl=1 300w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_5.png?resize=150%2C19&amp;ssl=1 150w\" sizes=\"(max-width:767px) 340px, 340px\" data-attachment-id=\"65288\" data-permalink=\"https:\/\/rheolution.com\/it\/note-applicative\/misurazione-dellassorbanza-cinetica-e-velocita-delle-reazioni-chimiche\/attachment\/chemical_reactions_absorb_eqt_5-4\/\" data-orig-file=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_5.png?fit=340%2C43&amp;ssl=1\" data-orig-size=\"340,43\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Chemical_reactions\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorb_eqt_5.png?fit=340%2C43&amp;ssl=1\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0d68d8a elementor-widget elementor-widget-image\" data-id=\"0d68d8a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1264\" src=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig2-2.png?fit=768%2C1264&amp;ssl=1\" class=\"attachment-medium_large size-medium_large wp-image-65289\" alt=\"Plots of Abs, ln Abs, and 1\/Abs over time for blue dye with sodium hypochlorite concentrations, including linear regressions.\" srcset=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig2-2.png?w=1269&amp;ssl=1 1269w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig2-2.png?resize=182%2C300&amp;ssl=1 182w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig2-2.png?resize=622%2C1024&amp;ssl=1 622w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig2-2.png?resize=768%2C1264&amp;ssl=1 768w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig2-2.png?resize=934%2C1536&amp;ssl=1 934w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig2-2.png?resize=1245%2C2048&amp;ssl=1 1245w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig2-2.png?resize=46%2C75&amp;ssl=1 46w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig2-2.png?resize=480%2C790&amp;ssl=1 480w\" sizes=\"(max-width:767px) 700px, (max-width:768px) 100vw, 768px\" data-attachment-id=\"65289\" data-permalink=\"https:\/\/rheolution.com\/it\/note-applicative\/misurazione-dellassorbanza-cinetica-e-velocita-delle-reazioni-chimiche\/attachment\/fig2-2-2-4\/\" data-orig-file=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig2-2.png?fit=1269%2C2088&amp;ssl=1\" data-orig-size=\"1269,2088\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Plots of Abs\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Fig2-2.png?fit=622%2C1024&amp;ssl=1\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9cc9908 elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"9cc9908\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-style: normal;font-weight: bold;font-size: 16px;font-family: &apos;Red Hat Text&apos;, sans-serif\">Figura 2: <\/span>Valori medi <span style=\"font-style: normal;font-weight: bold;font-size: 16px;font-family: &apos;Red Hat Text&apos;, sans-serif\">di assorbanza <\/span>(Abs), ln Abs e 1\/Abs in funzione del tempo per un colorante blu alimentare con entrambe le concentrazioni di ipoclorito di sodio (n=3), con le rispettive regressioni lineari.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cff0e5a elementor-widget elementor-widget-heading\" data-id=\"cff0e5a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">Conclusioni e prospettive<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fc638ed elementor-widget elementor-widget-text-editor\" data-id=\"fc638ed\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400\"><a href=\"https:\/\/rheolution.com\/products\/absor-b\/\" target=\"_blank\" rel=\"noopener\">ABSOR.B\u2122<\/a><\/span> \u00e8 stato utilizzato con successo per misurare le variazioni di assorbanza nel tempo a 635 nm durante la reazione tra un colorante blu per uso alimentare e la candeggina in soluzione. La legge di velocit\u00e0 di questa reazione chimica \u00e8 stata calcolata dalla cinetica di assorbanza. <\/p><p>In generale, il <span style=\"font-weight: 400\"><a href=\"https:\/\/rheolution.com\/products\/absor-b\/\" target=\"_blank\" rel=\"noopener\">ABSOR.B\u2122<\/a><\/span> ti permette di:<\/p><ul><li>Raccolta di misurazioni continue dell&#8217;assorbanza nella sua app per tablet, per analizzare facilmente la cinetica delle reazioni chimiche.<\/li><li>Personalizzazione della piattaforma di analisi in base alla lunghezza d&#8217;onda richiesta dall&#8217;applicazione (con diverse cartucce ottiche per l&#8217;emissione della luce), ai portacampioni pi\u00f9 adatti all&#8217;esperimento (tra fiale, cuvette e microprovette) e alla capacit\u00e0 di analisi tramite il controllo di pi\u00f9 <span style=\"font-weight: 400\"><a href=\"https:\/\/rheolution.com\/products\/absor-b\/\" target=\"_blank\" rel=\"noopener\">unit\u00e0 ABSOR.B\u2122<\/a><\/span> da un unico tablet wireless.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cca1875 elementor-widget__width-initial elementor-widget-mobile__width-inherit elementor--h-position-center elementor--v-position-middle elementor-arrows-position-inside elementor-widget elementor-widget-slides\" data-id=\"cca1875\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;navigation&quot;:&quot;arrows&quot;,&quot;autoplay_speed&quot;:4000,&quot;transition_speed&quot;:4000,&quot;autoplay&quot;:&quot;yes&quot;,&quot;pause_on_hover&quot;:&quot;yes&quot;,&quot;pause_on_interaction&quot;:&quot;yes&quot;,&quot;infinite&quot;:&quot;yes&quot;,&quot;transition&quot;:&quot;slide&quot;}\" data-widget_type=\"slides.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-swiper\">\n\t\t\t\t\t<div class=\"elementor-slides-wrapper elementor-main-swiper swiper\" role=\"region\" aria-roledescription=\"carousel\" aria-label=\"Slides\" dir=\"ltr\" data-animation=\"fadeInUp\">\n\t\t\t\t<div class=\"swiper-wrapper elementor-slides\">\n\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-repeater-item-c97f30c swiper-slide\" role=\"group\" aria-roledescription=\"slide\"><div class=\"swiper-slide-bg\" role=\"img\" aria-label=\"ABSOR.B\u2122 photo: IoT-Enabled Absorbance &amp; Transmittance Meter with interchangeable wavelengths.\"><\/div><div class=\"swiper-slide-inner\" ><div class=\"swiper-slide-contents\"><\/div><\/div><\/div><div class=\"elementor-repeater-item-1ae3858 swiper-slide\" role=\"group\" aria-roledescription=\"slide\"><div class=\"swiper-slide-bg\" role=\"img\" aria-label=\"ABSOR.B\u2122 photo with the monitoring tablet: IoT-Enabled Absorbance &amp; Transmittance Meter with interchangeable wavelengths.\"><\/div><div class=\"swiper-slide-inner\" ><div class=\"swiper-slide-contents\"><\/div><\/div><\/div><div class=\"elementor-repeater-item-909265f swiper-slide\" role=\"group\" aria-roledescription=\"slide\"><div class=\"swiper-slide-bg\" role=\"img\" aria-label=\"ABSOR.B\u2122 photo with the emission and reception optical cartridge.\"><\/div><div class=\"swiper-slide-inner\" ><div class=\"swiper-slide-contents\"><\/div><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-swiper-button elementor-swiper-button-prev\" role=\"button\" tabindex=\"0\" aria-label=\"Diapositiva precedente\">\n\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-eicon-chevron-left\" viewBox=\"0 0 1000 1000\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M646 125C629 125 613 133 604 142L308 442C296 454 292 471 292 487 292 504 296 521 308 533L604 854C617 867 629 875 646 875 663 875 679 871 692 858 704 846 713 829 713 812 713 796 708 779 692 767L438 487 692 225C700 217 708 204 708 187 708 171 704 154 692 142 675 129 663 125 646 125Z\"><\/path><\/svg>\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<div class=\"elementor-swiper-button 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class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Contattaci per ricevere un preventivo o per saperne di pi\u00f9<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-478c909 elementor-align-center elementor-widget elementor-widget-button\" data-id=\"478c909\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/rheolution.com\/contact\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Contattaci per saperne di pi\u00f9<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3e5cdc6 elementor-widget elementor-widget-heading\" data-id=\"3e5cdc6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">BIBLIOGRAFIA<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-79c7020 elementor-widget elementor-widget-text-editor\" data-id=\"79c7020\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>[1] <a href=\"https:\/\/edu.rsc.org\/resources\/teachers-resource-uv-\/-visible-spectroscopy\/941.article\" target=\"_blank\" rel=\"noopener\">Teacher\u2019s resource: UV \/ Visible Spectroscopy<\/a><\/p><p>[2] <a href=\"https:\/\/chem.libretexts.org\/Courses\/University_of_Arkansas_Little_Rock\/000%3AChem_1403L_General_Chemistry_Lab\/05%3A_kinetics_-_Integrated_Rate_Laws\/5.2%3A_Beer%27s_Law_and_Integrated_Rate_Law_Lab\" target=\"_blank\" rel=\"noopener\">Beer&#8217;s Law and Integrated Rate Law Lab, LibreTexts Chemistry<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1950302 elementor-align-center elementor-widget elementor-widget-button\" data-id=\"1950302\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/rheolution.com\/wp-content\/uploads\/Chemical_reactions_absorbance.pdf\" target=\"_blank\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Accedi alla versione completa della nota sull'app (PDF) <\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4f6c3f3 elementor-widget elementor-widget-heading\" data-id=\"4f6c3f3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">Articoli correlati<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7f2c802 premium-blog-cta-full-yes premium-floating-effects-yes premium-disable-fe-yes elementor-widget__width-initial premium-blog-align-left elementor-widget elementor-widget-premium-addon-blog\" data-id=\"7f2c802\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;force_height&quot;:&quot;true&quot;,&quot;premium_blog_grid&quot;:&quot;yes&quot;,&quot;premium_blog_layout&quot;:&quot;even&quot;,&quot;premium_blog_columns_number&quot;:&quot;50%&quot;,&quot;premium_blog_columns_number_tablet&quot;:&quot;50%&quot;,&quot;premium_blog_columns_number_mobile&quot;:&quot;100%&quot;,&quot;scroll_to_offset&quot;:&quot;yes&quot;,&quot;premium_fe_trigger&quot;:&quot;load&quot;,&quot;premium_fe_direction&quot;:&quot;alternate&quot;,&quot;premium_fe_loop&quot;:&quot;default&quot;,&quot;premium_fe_easing&quot;:&quot;easeInOutSine&quot;}\" data-widget_type=\"premium-addon-blog.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\n\t\t\n\n\t\t\t\t<div class=\"premium-blog-wrap  premium-blog-even\" data-page=\"65281\">\n\t\t\t\t\t\t\t\t\t<div class=\"premium-blog-post-outer-container\" data-total=\"1\">\n\t\t\t<div class=\"premium-blog-post-container premium-blog-skin-classic\">\n\t\t\t\t\t\t\t\t\t<div class=\"premium-blog-thumb-effect-wrapper\">\n\t\t\t\t\t\t<div class=\"premium-blog-thumbnail-container premium-blog-zoomin-effect\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"450\" src=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/web_banner_size-6.jpg?fit=1200%2C450&amp;ssl=1\" class=\"attachment-full size-full wp-image-65263\" alt=\"ABSOR.B\u2122 photo: IoT-Enabled Absorbance &amp; Transmittance Meter with interchangeable wavelengths.\" data-attachment-id=\"65263\" data-permalink=\"https:\/\/rheolution.com\/it\/note-tecniche\/una-soluzione-moderna-e-conveniente-per-misurare-lassorbanza\/attachment\/web_banner_size-6-4\/\" data-orig-file=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/web_banner_size-6.jpg?fit=1200%2C450&amp;ssl=1\" data-orig-size=\"1200,450\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"ABSOR.B\u2122 photo\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/web_banner_size-6.jpg?fit=1024%2C384&amp;ssl=1\" srcset=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/web_banner_size-6.jpg?w=1200&amp;ssl=1 1200w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/web_banner_size-6.jpg?resize=300%2C113&amp;ssl=1 300w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/web_banner_size-6.jpg?resize=1024%2C384&amp;ssl=1 1024w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/web_banner_size-6.jpg?resize=768%2C288&amp;ssl=1 768w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/web_banner_size-6.jpg?resize=150%2C56&amp;ssl=1 150w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/web_banner_size-6.jpg?resize=480%2C180&amp;ssl=1 480w\" sizes=\"(max-width:767px) 700px, (max-width:1200px) 100vw, 1200px\" \/>\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"premium-blog-thumbnail-overlay\">\n\t\t\t\t\t\t\t\t<a class=\"elementor-icon\" href=\"https:\/\/rheolution.com\/it\/note-tecniche\/una-soluzione-moderna-e-conveniente-per-misurare-lassorbanza\/\" target=\"_blank\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-screen-only\">La soluzione moderna e conveniente per misurare l&#8217;assorbanza a lunghezze d&#8217;onda specifiche<\/span>\n\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t<\/div>\n\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"premium-blog-content-wrapper \">\n\n\t\t\t\t\t<div class=\"premium-blog-inner-container\">\n\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<h4 class=\"premium-blog-entry-title\">\n\t\t\t<a href=\"https:\/\/rheolution.com\/it\/note-tecniche\/una-soluzione-moderna-e-conveniente-per-misurare-lassorbanza\/\" target=\"_blank\">\n\t\t\t\tLa soluzione moderna e conveniente per misurare l&#8217;assorbanza a lunghezze d&#8217;onda specifiche\t\t\t<\/a>\n\t\t<\/h4>\n\t\t\t\t<div class=\"premium-blog-entry-meta\">\n\t\t\t\n\t\t\t\n\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\n\t\t\t\t\t<\/div>\n\n\t\t\t\t\t\t\t<div class=\"premium-blog-content-inner-wrapper\">\n\t\t<p class=\"premium-blog-post-content\">L'assorbanza \u00e8 un concetto fondamentale nel campo della spettrofotometria, una tecnica usata per misurare la quantit\u00e0 di luce assorbita da una sostanza su un ampio intervallo di lunghezze d'onda. \u00c8 una grandezza adimensionale derivata dal logaritmo del rapporto tra la luce incidente e quella trasmessa attraverso un campione. Lo spettro di assorbanza, spesso rappresentato graficamente, rivela le lunghezze d\u2019onda alle quali una sostanza assorbe la luce con maggiore intensit\u00e0 (Figura 1). Queste informazioni sono utili in vari campi scientifici come la biologia, la chimica, la biochimica e la biologia molecolare per identificare e quantificare composti specifici...<\/p><div class=\"premium-blog-excerpt-link-wrap\"><a href=\"https:\/\/rheolution.com\/it\/note-tecniche\/una-soluzione-moderna-e-conveniente-per-misurare-lassorbanza\/\" target=\"_blank\" class=\"premium-blog-excerpt-link elementor-button\">Leggi di pi\u00f9 \u00bb<\/a><\/div>\t\t<\/div>\n\t\t\t\t\t\t\t\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div>\n\n\t\t\t\t\t\t\t<\/div>\n\n\t\t\n\t\t\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Le reazioni chimiche in cui uno dei reagenti o dei prodotti \u00e8 colorato possono essere monitorate misurando l\u2019assorbanza nel tempo. Ad esempio, le molecole di colorante possono reagire con sostanze specifiche, modificando la loro struttura chimica e quindi la loro capacit\u00e0 di assorbire o riflettere la luce allo stesso modo. Allo stesso modo, l\u2019attivit\u00e0 degli enzimi pu\u00f2 essere monitorata quando la reazione tra l\u2019enzima e il substrato porta alla formazione di un prodotto colorato. In questi due esempi, la velocit\u00e0 delle reazioni chimiche&#8230;   <\/p>\n","protected":false},"author":195401338,"featured_media":65290,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_wpcom_ai_launchpad_first_post":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[289],"tags":[176],"class_list":["post-65281","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-note-applicative","tag-absorbance"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Misura delle Velocit\u00e0 di Reazione Chimica con l\u2019Assorbanza<\/title>\n<meta name=\"description\" content=\"Scopri come misurare l&#039;assorbanza e le velocit\u00e0 di reazione in chimica, utilizzando gli esempi del colorante blu e della candeggina per una comprensione pi\u00f9 chiara.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/rheolution.com\/it\/note-applicative\/misurazione-dellassorbanza-cinetica-e-velocita-delle-reazioni-chimiche\/\" \/>\n<meta property=\"og:locale\" content=\"it_IT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Misura delle Velocit\u00e0 di Reazione Chimica con l\u2019Assorbanza\" \/>\n<meta property=\"og:description\" content=\"Scopri come misurare l&#039;assorbanza e le velocit\u00e0 di reazione in chimica, utilizzando gli esempi del colorante blu e della candeggina per una comprensione pi\u00f9 chiara.\" \/>\n<meta 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