{"id":186266,"date":"2025-01-24T16:42:41","date_gmt":"2025-01-24T16:42:41","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=186266"},"modified":"2025-01-24T16:42:43","modified_gmt":"2025-01-24T16:42:43","slug":"different-oxidation-states-of-iron-comparison-standards-solution-feso4-fecloa-iron-ion-present-2-3-interpret-how-the-kscn-allows-you-to-better-tell-which-iron-ion-you-have","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/01\/24\/different-oxidation-states-of-iron-comparison-standards-solution-feso4-fecloa-iron-ion-present-2-3-interpret-how-the-kscn-allows-you-to-better-tell-which-iron-ion-you-have\/","title":{"rendered":"Different Oxidation States of Iron Comparison Standards Solution FeSO4) FeCl(oa) Iron ion present (+2\/+3) Interpret how the KSCN allows you to better tell which iron ion you have"},"content":{"rendered":"\n<p>Different Oxidation States of Iron Comparison Standards Solution FeSO4) FeCl(oa) Iron ion present (+2\/+3) Interpret how the KSCN allows you to better tell which iron ion you have. Reaction 1 Balance each half-reaction including electrons, then balance the overall net ionic equation. Give the oxidation state for each atom in the equation. Ox: Fe? Red: NO, Net: What ion\/molecule contains the element that gets oxidized? What is the oxidizing agent in the above reaction?<\/p>\n\n\n\n<p><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-6-color\"><strong>The Correct Answer and Explanation is :<\/strong><\/mark><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Balanced Half-Reactions and Overall Net Ionic Equation<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">Oxidation Half-Reaction (Fe\u00b2\u207a to Fe\u00b3\u207a):<\/h4>\n\n\n\n<p>The oxidation reaction involves iron (Fe\u00b2\u207a) being oxidized to Fe\u00b3\u207a by losing one electron.<\/p>\n\n\n\n<p>[<br>\\text{Fe}^{2+} \\rightarrow \\text{Fe}^{3+} + e^-<br>]<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Reduction Half-Reaction (NO\u2083\u207b to NO):<\/h4>\n\n\n\n<p>In the reduction half-reaction, nitrate ion (NO\u2083\u207b) is reduced to nitrogen monoxide (NO) by gaining electrons. To balance the equation, we need to account for the hydrogen ions (H\u207a) that balance the overall charges and atoms.<\/p>\n\n\n\n<p>[<br>\\text{NO}_3^- + 4\\text{H}^+ + 3e^- \\rightarrow \\text{NO} + 2\\text{H}_2\\text{O}<br>]<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Overall Net Ionic Equation:<\/h4>\n\n\n\n<p>The overall reaction involves combining the two half-reactions, ensuring that electrons are balanced. The number of electrons lost in the oxidation half-reaction is 1, and in the reduction half-reaction is 3. To balance this, we multiply the oxidation reaction by 3 and the reduction reaction by 1.<\/p>\n\n\n\n<p>[<br>3 \\text{Fe}^{2+} + \\text{NO}_3^- + 12\\text{H}^+ \\rightarrow 3\\text{Fe}^{3+} + \\text{NO} + 6\\text{H}_2\\text{O}<br>]<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Oxidation States and Key Points:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Fe<\/strong>: In Fe\u00b2\u207a, the oxidation state of iron is +2, and in Fe\u00b3\u207a, it is +3.<\/li>\n\n\n\n<li><strong>Nitrate Ion (NO\u2083\u207b)<\/strong>: In NO\u2083\u207b, nitrogen has an oxidation state of +5, and in NO, nitrogen has an oxidation state of +2.<\/li>\n\n\n\n<li><strong>Oxidized Species<\/strong>: Fe\u00b2\u207a is the element being oxidized (it loses electrons to become Fe\u00b3\u207a).<\/li>\n\n\n\n<li><strong>Reducing Agent<\/strong>: Fe\u00b2\u207a is the reducing agent because it donates electrons to the nitrate ion (NO\u2083\u207b).<\/li>\n\n\n\n<li><strong>Oxidizing Agent<\/strong>: NO\u2083\u207b is the oxidizing agent because it accepts electrons, reducing to NO.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Role of KSCN:<\/h3>\n\n\n\n<p>KSCN (Potassium thiocyanate) helps in determining the iron oxidation state because thiocyanate ions react with Fe\u00b3\u207a ions to form a reddish-brown complex, while Fe\u00b2\u207a does not form this complex. This visual test can distinguish between Fe\u00b2\u207a and Fe\u00b3\u207a ions in a solution. The formation of the red complex indicates the presence of Fe\u00b3\u207a, whereas the absence of the color change suggests Fe\u00b2\u207a. Therefore, KSCN serves as a qualitative indicator of the iron oxidation state in a given solution.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Different Oxidation States of Iron Comparison Standards Solution FeSO4) FeCl(oa) Iron ion present (+2\/+3) Interpret how the KSCN allows you to better tell which iron ion you have. Reaction 1 Balance each half-reaction including electrons, then balance the overall net ionic equation. Give the oxidation state for each atom in the equation. Ox: Fe? Red: [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[25],"tags":[],"class_list":["post-186266","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/186266","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/comments?post=186266"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/186266\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=186266"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=186266"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=186266"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}