{"id":198488,"date":"2025-03-08T20:38:40","date_gmt":"2025-03-08T20:38:40","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=198488"},"modified":"2025-03-08T20:38:42","modified_gmt":"2025-03-08T20:38:42","slug":"calculate-the-molar-mass-of-magnesium-chloride-mgcl-2","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/03\/08\/calculate-the-molar-mass-of-magnesium-chloride-mgcl-2\/","title":{"rendered":"Calculate the molar mass of magnesium chloride, MgCl 2"},"content":{"rendered":"\n<p>Calculate the molar mass of magnesium chloride, MgCl 2.<\/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<p>To calculate the molar mass of magnesium chloride (MgCl\u2082), we need to sum up the atomic masses of all the atoms in the compound. Magnesium chloride consists of one magnesium (Mg) atom and two chlorine (Cl) atoms.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Step 1: Find the atomic masses of the elements involved.<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Magnesium (Mg)<\/strong> has an atomic mass of approximately <strong>24.305 g\/mol<\/strong>.<\/li>\n\n\n\n<li><strong>Chlorine (Cl)<\/strong> has an atomic mass of approximately <strong>35.45 g\/mol<\/strong>.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Step 2: Multiply the atomic mass of each element by the number of atoms of that element in the formula.<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>There is <strong>1 magnesium atom<\/strong> in MgCl\u2082, so the mass of magnesium is:<br>[<br>1 \\times 24.305 = 24.305 \\, \\text{g\/mol}<br>]<\/li>\n\n\n\n<li>There are <strong>2 chlorine atoms<\/strong> in MgCl\u2082, so the mass of chlorine is:<br>[<br>2 \\times 35.45 = 70.90 \\, \\text{g\/mol}<br>]<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Step 3: Add the masses of all the atoms together to find the molar mass of MgCl\u2082.<\/h3>\n\n\n\n<p>[<br>\\text{Molar mass of MgCl}_2 = 24.305 + 70.90 = 95.205 \\, \\text{g\/mol}<br>]<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Explanation:<\/h3>\n\n\n\n<p>The molar mass of a compound is the sum of the atomic masses of all the atoms in its formula, calculated in grams per mole (g\/mol). In this case, magnesium chloride (MgCl\u2082) consists of one magnesium atom and two chlorine atoms. The atomic mass of magnesium is approximately 24.305 g\/mol, and the atomic mass of chlorine is approximately 35.45 g\/mol. By multiplying the atomic masses by the number of atoms of each element in the compound (one magnesium atom and two chlorine atoms), we find the total molar mass of MgCl\u2082 to be <strong>95.205 g\/mol<\/strong>.<\/p>\n\n\n\n<p>This value represents the mass of one mole of magnesium chloride. The molar mass is a crucial concept in chemistry because it allows chemists to convert between the number of moles of a substance and its mass, making it easier to carry out stoichiometric calculations in chemical reactions.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Calculate the molar mass of magnesium chloride, MgCl 2. The correct answer and explanation is : To calculate the molar mass of magnesium chloride (MgCl\u2082), we need to sum up the atomic masses of all the atoms in the compound. Magnesium chloride consists of one magnesium (Mg) atom and two chlorine (Cl) atoms. Step 1: [&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-198488","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/198488","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=198488"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/198488\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=198488"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=198488"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=198488"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}