{"id":229593,"date":"2025-06-08T09:54:52","date_gmt":"2025-06-08T09:54:52","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=229593"},"modified":"2025-06-08T09:54:54","modified_gmt":"2025-06-08T09:54:54","slug":"what-is-the-molar-mass-of-acetic-acid-hc2h3o2","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/06\/08\/what-is-the-molar-mass-of-acetic-acid-hc2h3o2\/","title":{"rendered":"What is the molar mass of acetic acid (HC2H3O2)"},"content":{"rendered":"\n<p> What is the molar mass of acetic acid (HC2H3O2)? (NOTE: H = 1.008 amu, C = 12.011 amu, O = 15.999 amu) 120.1 g\/mol 30.0 g\/mol 58.0 g\/mol 60.0 g\/mol<\/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><strong>Correct Answer: 60.0 g\/mol<\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Explanation:<\/h3>\n\n\n\n<p>To calculate the <strong>molar mass<\/strong> of a compound, we sum the atomic masses of all the atoms present in its chemical formula. The chemical formula for <strong>acetic acid<\/strong> is <strong>HC\u2082H\u2083O\u2082<\/strong>, which can also be written as <strong>CH\u2083COOH<\/strong>, reflecting its structure more clearly.<\/p>\n\n\n\n<p>Let\u2019s break down the elements in <strong>acetic acid<\/strong> and calculate:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Hydrogen (H):<\/strong> There are <strong>4 hydrogen atoms<\/strong> (3 from CH\u2083 and 1 from OH).\n<ul class=\"wp-block-list\">\n<li>Atomic mass of H = <strong>1.008 amu<\/strong><\/li>\n\n\n\n<li>Total for H = 4 \u00d7 1.008 = <strong>4.032 g\/mol<\/strong><\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Carbon (C):<\/strong> There are <strong>2 carbon atoms<\/strong>.\n<ul class=\"wp-block-list\">\n<li>Atomic mass of C = <strong>12.011 amu<\/strong><\/li>\n\n\n\n<li>Total for C = 2 \u00d7 12.011 = <strong>24.022 g\/mol<\/strong><\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Oxygen (O):<\/strong> There are <strong>2 oxygen atoms<\/strong>.\n<ul class=\"wp-block-list\">\n<li>Atomic mass of O = <strong>15.999 amu<\/strong><\/li>\n\n\n\n<li>Total for O = 2 \u00d7 15.999 = <strong>31.998 g\/mol<\/strong><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Total Molar Mass:<\/h3>\n\n\n\n<p>Now, we sum all the contributions:Molar&nbsp;Mass=4.032\u2009(H)+24.022\u2009(C)+31.998\u2009(O)=60.052\u2009g\/mol\\text{Molar Mass} = 4.032 \\, (\\text{H}) + 24.022 \\, (\\text{C}) + 31.998 \\, (\\text{O}) = \\mathbf{60.052} \\, \\text{g\/mol}Molar&nbsp;Mass=4.032(H)+24.022(C)+31.998(O)=60.052g\/mol<\/p>\n\n\n\n<p>Rounding appropriately to reflect significant figures based on the atomic masses given, we report the molar mass as <strong>60.0 g\/mol<\/strong>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Why This Matters:<\/h3>\n\n\n\n<p>Understanding molar mass is crucial in chemistry because it allows us to relate <strong>grams of a substance<\/strong> to <strong>moles<\/strong>, which is essential for stoichiometric calculations in reactions. In practical terms, if you have 60.0 grams of acetic acid, you have exactly 1 mole, which contains <strong>Avogadro&#8217;s number<\/strong> (6.022 \u00d7 10\u00b2\u00b3) of molecules. Acetic acid is a key component in vinegar and has applications in both food and industrial chemistry, making accurate calculations of its molar mass important in real-world contexts.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/learnexams.com\/blog\/wp-content\/uploads\/2025\/06\/learnexams-banner5-156.jpeg\" alt=\"\" class=\"wp-image-229594\"\/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>What is the molar mass of acetic acid (HC2H3O2)? (NOTE: H = 1.008 amu, C = 12.011 amu, O = 15.999 amu) 120.1 g\/mol 30.0 g\/mol 58.0 g\/mol 60.0 g\/mol The Correct Answer and Explanation is: Correct Answer: 60.0 g\/mol Explanation: To calculate the molar mass of a compound, we sum the atomic masses of [&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-229593","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/229593","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=229593"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/229593\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=229593"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=229593"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=229593"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}