{"id":195577,"date":"2025-02-28T13:05:31","date_gmt":"2025-02-28T13:05:31","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=195577"},"modified":"2025-02-28T13:05:34","modified_gmt":"2025-02-28T13:05:34","slug":"calculate-the-molecular-weight-of-1-mole-of-ethanol-c2h5oh","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/02\/28\/calculate-the-molecular-weight-of-1-mole-of-ethanol-c2h5oh\/","title":{"rendered":"Calculate the molecular weight of 1 mole of ethanol (C2H5OH)"},"content":{"rendered":"\n<p>Calculate the molecular weight of 1 mole of ethanol (C2H5OH). Round the atomic weights to the nearest whole number.<\/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<h3 class=\"wp-block-heading\">Calculation of the Molecular Weight of Ethanol (C\u2082H\u2085OH)<\/h3>\n\n\n\n<p>To determine the molecular weight of ethanol (C\u2082H\u2085OH), we sum the atomic weights of each atom in the molecular formula:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Carbon (C) = 12 g\/mol<\/li>\n\n\n\n<li>Hydrogen (H) = 1 g\/mol<\/li>\n\n\n\n<li>Oxygen (O) = 16 g\/mol<\/li>\n<\/ul>\n\n\n\n<p>Now, calculating the molecular weight:<\/p>\n\n\n\n<p>[<br>(2 \\times 12) + (6 \\times 1) + (1 \\times 16) = 24 + 6 + 16 = 46 \\text{ g\/mol}<br>]<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Explanation:<\/h3>\n\n\n\n<p>The molecular weight of a substance represents the sum of the atomic weights of all atoms in one molecule. Ethanol, a widely used alcohol in beverages, fuels, and disinfectants, consists of carbon, hydrogen, and oxygen.<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Carbon Contribution<\/strong>:<br>Ethanol has <strong>two<\/strong> carbon atoms, and since each carbon weighs <strong>12 g\/mol<\/strong>, their total contribution is <strong>24 g\/mol<\/strong>.<\/li>\n\n\n\n<li><strong>Hydrogen Contribution<\/strong>:<br>Ethanol contains <strong>six<\/strong> hydrogen atoms. Since each hydrogen weighs <strong>1 g\/mol<\/strong>, their total contribution is <strong>6 g\/mol<\/strong>.<\/li>\n\n\n\n<li><strong>Oxygen Contribution<\/strong>:<br>Ethanol has <strong>one<\/strong> oxygen atom, and since oxygen weighs <strong>16 g\/mol<\/strong>, its contribution is <strong>16 g\/mol<\/strong>.<\/li>\n<\/ol>\n\n\n\n<p>By adding all these contributions, we get a molecular weight of <strong>46 g\/mol<\/strong>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Importance of Molecular Weight:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Chemistry &amp; Stoichiometry<\/strong>: The molecular weight allows chemists to determine how much of a substance is needed for reactions.<\/li>\n\n\n\n<li><strong>Pharmaceuticals &amp; Medicine<\/strong>: Knowing molecular weight helps in drug formulation and dosage calculation.<\/li>\n\n\n\n<li><strong>Industrial Applications<\/strong>: Ethanol is widely used as a fuel, solvent, and antiseptic, and its molecular weight is crucial in manufacturing processes.<\/li>\n<\/ul>\n\n\n\n<p>Now, I will generate an image representing the molecular structure of ethanol.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/learnexams.com\/blog\/wp-content\/uploads\/2025\/02\/image-1680.png\" alt=\"\" class=\"wp-image-195578\"\/><\/figure>\n\n\n\n<p>Here is the molecular structure of ethanol (C\u2082H\u2085OH), showing the arrangement of atoms and bonds in a clear, educational style. Let me know if you need any modifications or further explanations!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Calculate the molecular weight of 1 mole of ethanol (C2H5OH). Round the atomic weights to the nearest whole number. The Correct Answer and Explanation is : Calculation of the Molecular Weight of Ethanol (C\u2082H\u2085OH) To determine the molecular weight of ethanol (C\u2082H\u2085OH), we sum the atomic weights of each atom in the molecular formula: Now, [&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-195577","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/195577","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=195577"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/195577\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=195577"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=195577"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=195577"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}