{"id":254524,"date":"2025-07-12T15:23:17","date_gmt":"2025-07-12T15:23:17","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=254524"},"modified":"2025-07-12T15:23:19","modified_gmt":"2025-07-12T15:23:19","slug":"what-is-the-mass-percent-of-water-in-magnesium-chloride-hexahydrate","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/07\/12\/what-is-the-mass-percent-of-water-in-magnesium-chloride-hexahydrate\/","title":{"rendered":"What is the mass percent of water in magnesium chloride hexahydrate"},"content":{"rendered":"\n<p>What is the mass percent of water in magnesium chloride hexahydrate? Provide an answer to two decimal places.<\/p>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-1-color\">The Correct Answer and Explanation is:<\/mark><\/strong><\/p>\n\n\n\n<p>To calculate the mass percent of water in magnesium chloride hexahydrate (MgCl\u2082 \u00b7 6H\u2082O), we need to first determine the molar mass of the compound and then the mass of water within it.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Step 1: Determine the molar mass of MgCl\u2082 \u00b7 6H\u2082O<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Mg<\/strong> (Magnesium): 24.31 g\/mol<\/li>\n\n\n\n<li><strong>Cl<\/strong> (Chlorine): 35.45 g\/mol<\/li>\n\n\n\n<li><strong>H\u2082O<\/strong> (Water): 18.015 g\/mol (for 1 molecule of water)<\/li>\n<\/ul>\n\n\n\n<p>Now, let&#8217;s calculate the molar mass of magnesium chloride hexahydrate:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Molar mass of MgCl\u2082: (24.31) + 2(35.45) = 24.31 + 70.90 = 95.21 g\/mol<\/li>\n\n\n\n<li>Molar mass of 6H\u2082O: 6 \u00d7 18.015 = 108.09 g\/mol<\/li>\n<\/ul>\n\n\n\n<p>So, the total molar mass of MgCl\u2082 \u00b7 6H\u2082O = 95.21 + 108.09 = <strong>203.30 g\/mol<\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Step 2: Calculate the mass of water in the compound<\/h3>\n\n\n\n<p>The mass of water in the compound is simply the mass of 6 molecules of water:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Mass of water = 108.09 g\/mol<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Step 3: Calculate the mass percent of water<\/h3>\n\n\n\n<p>To find the mass percent of water, divide the mass of water by the total molar mass of the hydrate and multiply by 100: Mass&nbsp;percent&nbsp;of&nbsp;water=(108.09203.30)\u00d7100=53.2%\\text{Mass percent of water} = \\left( \\frac{108.09}{203.30} \\right) \\times 100 = 53.2\\%Mass&nbsp;percent&nbsp;of&nbsp;water=(203.30108.09\u200b)\u00d7100=53.2%<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Final Answer:<\/h3>\n\n\n\n<p>The mass percent of water in magnesium chloride hexahydrate is <strong>53.20%<\/strong>.<\/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-banner6-399.jpeg\" alt=\"\" class=\"wp-image-254537\"\/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>What is the mass percent of water in magnesium chloride hexahydrate? Provide an answer to two decimal places. The Correct Answer and Explanation is: To calculate the mass percent of water in magnesium chloride hexahydrate (MgCl\u2082 \u00b7 6H\u2082O), we need to first determine the molar mass of the compound and then the mass of water [&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-254524","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/254524","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=254524"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/254524\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=254524"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=254524"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=254524"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}