{"id":211304,"date":"2025-05-03T16:33:08","date_gmt":"2025-05-03T16:33:08","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=211304"},"modified":"2025-05-03T16:33:10","modified_gmt":"2025-05-03T16:33:10","slug":"is-the-ionic-compound-nh43po4-soluble-or-insoluble","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/05\/03\/is-the-ionic-compound-nh43po4-soluble-or-insoluble\/","title":{"rendered":"Is the ionic compound (NH4)3PO4 soluble or insoluble"},"content":{"rendered":"\n<p>Is the ionic compound (NH4)3PO4 soluble or insoluble, and does each of its ions tend to be soluble?<\/p>\n\n\n\n<p>a. Both ions soluble<\/p>\n\n\n\n<p>b. Both ions insoluble<\/p>\n\n\n\n<p>c. Ions differ; soluble<\/p>\n\n\n\n<p>d. Ions differ; insoluble<\/p>\n\n\n\n<p><strong>Correct Answer: a. Both ions soluble<\/strong><\/p>\n\n\n\n<p><strong>Explanation:<\/strong><\/p>\n\n\n\n<p>The compound $(NH_4)_3PO_4$, known as <strong>ammonium phosphate<\/strong>, is composed of two types of ions: the <strong>ammonium ion (NH\u2084\u207a)<\/strong> and the <strong>phosphate ion (PO\u2084\u00b3\u207b)<\/strong>.<\/p>\n\n\n\n<p>To determine the solubility of this ionic compound, we refer to general <strong>solubility rules<\/strong> for ionic compounds in water:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>1. Ammonium ion (NH\u2084\u207a) \u2014 Always Soluble:<\/strong><\/h3>\n\n\n\n<p>According to solubility rules, <strong>all compounds containing the ammonium ion (NH\u2084\u207a)<\/strong> are <strong>soluble in water<\/strong>, regardless of the anion it is paired with. This is because the ammonium ion mimics alkali metal behavior in terms of solubility.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>2. Phosphate ion (PO\u2084\u00b3\u207b) \u2014 Generally Insoluble:<\/strong><\/h3>\n\n\n\n<p>Phosphate salts are <strong>generally insoluble<\/strong> in water <strong>except<\/strong> when combined with <strong>alkali metals (e.g., Na\u207a, K\u207a, Li\u207a)<\/strong> or <strong>ammonium (NH\u2084\u207a)<\/strong>. Thus, phosphate is not inherently soluble on its own, but it becomes soluble when paired with specific cations like NH\u2084\u207a.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Compound Solubility:<\/strong><\/h3>\n\n\n\n<p>In the case of <strong>(NH\u2084)\u2083PO\u2084<\/strong>, we have:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Cation (NH\u2084\u207a):<\/strong> Soluble by rule.<\/li>\n\n\n\n<li><strong>Anion (PO\u2084\u00b3\u207b):<\/strong> Soluble <strong>only<\/strong> when paired with NH\u2084\u207a or alkali metals.<\/li>\n<\/ul>\n\n\n\n<p>Since both ions in this compound result in a <strong>soluble<\/strong> compound when combined, <strong>(NH\u2084)\u2083PO\u2084 is soluble in water<\/strong>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Why This Matters:<\/strong><\/h3>\n\n\n\n<p>This solubility information is important in contexts like precipitation reactions and determining whether a solution will contain free ions. When <strong>(NH\u2084)\u2083PO\u2084 dissolves in water<\/strong>, it dissociates completely into:<\/p>\n\n\n\n<p>$$<br>3NH_4^+ + PO_4^{3-}<br>$$<\/p>\n\n\n\n<p>These free ions in solution make the compound effective in various chemical reactions and industrial uses, such as fertilizers.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Conclusion:<\/strong><\/h3>\n\n\n\n<p>Both ions in the compound are considered <strong>soluble<\/strong>, and the entire compound dissolves in water. Hence, the correct answer is:<\/p>\n\n\n\n<p>\u2705 <strong>a. Both ions soluble<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Is the ionic compound (NH4)3PO4 soluble or insoluble, and does each of its ions tend to be soluble? a. Both ions soluble b. Both ions insoluble c. Ions differ; soluble d. Ions differ; insoluble Correct Answer: a. Both ions soluble Explanation: The compound $(NH_4)_3PO_4$, known as ammonium phosphate, is composed of two types of ions: [&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-211304","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/211304","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=211304"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/211304\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=211304"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=211304"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=211304"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}