{"id":233823,"date":"2025-06-13T12:46:23","date_gmt":"2025-06-13T12:46:23","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=233823"},"modified":"2025-06-13T12:46:27","modified_gmt":"2025-06-13T12:46:27","slug":"in-water-ironiii-chloride-reacts-with-sodium-hydroxide-producing-solid-ironiii-hydroxide-and-sodium-chloride","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/06\/13\/in-water-ironiii-chloride-reacts-with-sodium-hydroxide-producing-solid-ironiii-hydroxide-and-sodium-chloride\/","title":{"rendered":"In water, iron(III) chloride reacts with sodium hydroxide, producing solid iron(III) hydroxide and sodium chloride."},"content":{"rendered":"\n

In water, iron(III) chloride reacts with sodium hydroxide, producing solid iron(III) hydroxide and sodium chloride.<\/p>\n\n\n\n

The Correct Answer and Explanation is:<\/mark><\/strong><\/p>\n\n\n\n

Correct Balanced Chemical Equation:<\/strong><\/p>\n\n\n\n

FeCl\u2083 (aq) + 3NaOH (aq) \u2192 Fe(OH)\u2083 (s) + 3NaCl (aq)<\/strong><\/p>\n\n\n\n

\n\n\n\n

Explanation:<\/strong><\/h3>\n\n\n\n

When iron(III) chloride (FeCl\u2083)<\/strong> is added to water, it dissolves and dissociates into its constituent ions:<\/p>\n\n\n\n

FeCl\u2083 (aq) \u2192 Fe\u00b3\u207a (aq) + 3Cl\u207b (aq)<\/strong><\/p>\n\n\n\n

Similarly, sodium hydroxide (NaOH)<\/strong> is a strong base that also dissociates completely in water:<\/p>\n\n\n\n

NaOH (aq) \u2192 Na\u207a (aq) + OH\u207b (aq)<\/strong><\/p>\n\n\n\n

In solution, the Fe\u00b3\u207a<\/strong> ions from iron(III) chloride react with OH\u207b<\/strong> ions from sodium hydroxide. This results in the formation of iron(III) hydroxide, Fe(OH)\u2083<\/strong>, a reddish-brown precipitate<\/strong> that is insoluble in water:<\/p>\n\n\n\n

Fe\u00b3\u207a (aq) + 3OH\u207b (aq) \u2192 Fe(OH)\u2083 (s)<\/strong><\/p>\n\n\n\n

At the same time, the Na\u207a<\/strong> and Cl\u207b<\/strong> ions remain in the solution as spectator ions<\/strong>, forming sodium chloride (NaCl)<\/strong>, a soluble salt:<\/p>\n\n\n\n

Na\u207a (aq) + Cl\u207b (aq) \u2192 NaCl (aq)<\/strong><\/p>\n\n\n\n

Thus, the overall balanced molecular equation<\/strong> for the double displacement (also called precipitation reaction<\/strong>) is:<\/p>\n\n\n\n

FeCl\u2083 (aq) + 3NaOH (aq) \u2192 Fe(OH)\u2083 (s) + 3NaCl (aq)<\/strong><\/p>\n\n\n\n

This is a double replacement reaction<\/strong>, where the cations (Fe\u00b3\u207a and Na\u207a) exchange anions (Cl\u207b and OH\u207b), forming a precipitate of Fe(OH)\u2083.<\/p>\n\n\n\n

The net ionic equation<\/strong>, which shows only the species that change during the reaction, is:<\/p>\n\n\n\n

Fe\u00b3\u207a (aq) + 3OH\u207b (aq) \u2192 Fe(OH)\u2083 (s)<\/strong><\/p>\n\n\n\n

This reaction illustrates key concepts in aqueous chemistry, including ion exchange, solubility rules, and the formation of precipitates. It also demonstrates how certain metal salts can be used to remove heavy metal ions from solutions through precipitation.<\/p>\n\n\n\n

\"\"<\/figure>\n","protected":false},"excerpt":{"rendered":"

In water, iron(III) chloride reacts with sodium hydroxide, producing solid iron(III) hydroxide and sodium chloride. The Correct Answer and Explanation is: Correct Balanced Chemical Equation: FeCl\u2083 (aq) + 3NaOH (aq) \u2192 Fe(OH)\u2083 (s) + 3NaCl (aq) Explanation: When iron(III) chloride (FeCl\u2083) is added to water, it dissolves and dissociates into its constituent ions: FeCl\u2083 (aq) […]<\/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-233823","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/233823","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=233823"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/233823\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=233823"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=233823"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=233823"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}