{"id":256074,"date":"2025-07-13T19:16:48","date_gmt":"2025-07-13T19:16:48","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=256074"},"modified":"2025-07-13T19:16:51","modified_gmt":"2025-07-13T19:16:51","slug":"write-a-formula-for-the-compound-that-forms-between-rubidium-and-each-polyatomic-ion","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/07\/13\/write-a-formula-for-the-compound-that-forms-between-rubidium-and-each-polyatomic-ion\/","title":{"rendered":"Write a formula for the compound that forms between rubidium and each polyatomic ion"},"content":{"rendered":"\n<p>Write a formula for the compound that forms between rubidium and each polyatomic ion: Part A Carbonate. Express your answer as a chemical formula. Part B Phosphate. Express your answer as a chemical formula. Part C Hydrogen phosphate. Express your answer as a chemical formula. Part D Acetate. Express your answer as a chemical formula.<\/p>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-0-color\">The Correct Answer and Explanation is:<\/mark><\/strong><\/p>\n\n\n\n<p><strong>Part A: Rubidium Carbonate<\/strong><\/p>\n\n\n\n<p>The formula for rubidium carbonate can be determined by looking at the charges on the ions involved.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Rubidium (Rb) is an alkali metal, and its ion is Rb+Rb^+Rb+.<\/li>\n\n\n\n<li>Carbonate (CO32\u2212CO_3^{2-}CO32\u2212\u200b) has a charge of 2\u22122-2\u2212.<\/li>\n<\/ul>\n\n\n\n<p>To balance the charges, two Rb+Rb^+Rb+ ions are needed for each CO32\u2212CO_3^{2-}CO32\u2212\u200b ion. Therefore, the formula is:Rb2CO3\\text{Rb}_2\\text{CO}_3Rb2\u200bCO3\u200b<\/p>\n\n\n\n<p><strong>Part B: Rubidium Phosphate<\/strong><\/p>\n\n\n\n<p>Phosphate ions (PO43\u2212PO_4^{3-}PO43\u2212\u200b) have a charge of 3\u22123-3\u2212, while rubidium ions (Rb+Rb^+Rb+) have a charge of 1+1+1+. To balance the charges, three Rb+Rb^+Rb+ ions are needed for each PO43\u2212PO_4^{3-}PO43\u2212\u200b ion. Thus, the formula for rubidium phosphate is:Rb3PO4\\text{Rb}_3\\text{PO}_4Rb3\u200bPO4\u200b<\/p>\n\n\n\n<p><strong>Part C: Rubidium Hydrogen Phosphate<\/strong><\/p>\n\n\n\n<p>Hydrogen phosphate (HPO42\u2212HPO_4^{2-}HPO42\u2212\u200b) has a charge of 2\u22122-2\u2212, while rubidium has a charge of 1+1+1+. To balance the charges, two Rb+Rb^+Rb+ ions are needed for each HPO42\u2212HPO_4^{2-}HPO42\u2212\u200b ion. Thus, the formula for rubidium hydrogen phosphate is:Rb2HPO4\\text{Rb}_2\\text{HPO}_4Rb2\u200bHPO4\u200b<\/p>\n\n\n\n<p><strong>Part D: Rubidium Acetate<\/strong><\/p>\n\n\n\n<p>Acetate (C2H3O2\u2212C_2H_3O_2^-C2\u200bH3\u200bO2\u2212\u200b) has a charge of 1\u22121-1\u2212, while rubidium (Rb+Rb^+Rb+) has a charge of 1+1+1+. Since the charges are equal and opposite, one Rb+Rb^+Rb+ ion will balance one acetate ion. Therefore, the formula for rubidium acetate is:RbC2H3O2\\text{RbC}_2\\text{H}_3\\text{O}_2RbC2\u200bH3\u200bO2\u200b<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>In summary:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Part A<\/strong>: Rb2CO3\\text{Rb}_2\\text{CO}_3Rb2\u200bCO3\u200b<\/li>\n\n\n\n<li><strong>Part B<\/strong>: Rb3PO4\\text{Rb}_3\\text{PO}_4Rb3\u200bPO4\u200b<\/li>\n\n\n\n<li><strong>Part C<\/strong>: Rb2HPO4\\text{Rb}_2\\text{HPO}_4Rb2\u200bHPO4\u200b<\/li>\n\n\n\n<li><strong>Part D<\/strong>: RbC2H3O2\\text{RbC}_2\\text{H}_3\\text{O}_2RbC2\u200bH3\u200bO2\u200b<\/li>\n<\/ul>\n\n\n\n<p>The formulas are derived by ensuring the positive and negative charges are balanced, with the number of each ion adjusted accordingly.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/learnexams.com\/blog\/wp-content\/uploads\/2025\/07\/learnexams-banner6-561.jpeg\" alt=\"\" class=\"wp-image-256075\"\/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Write a formula for the compound that forms between rubidium and each polyatomic ion: Part A Carbonate. Express your answer as a chemical formula. Part B Phosphate. Express your answer as a chemical formula. Part C Hydrogen phosphate. Express your answer as a chemical formula. Part D Acetate. Express your answer as a chemical formula. [&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-256074","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/256074","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=256074"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/256074\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=256074"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=256074"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=256074"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}