{"id":264351,"date":"2025-07-21T12:32:04","date_gmt":"2025-07-21T12:32:04","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=264351"},"modified":"2025-07-21T12:32:07","modified_gmt":"2025-07-21T12:32:07","slug":"how-many-atoms-are-there-in-0-2-mol-of-methane-molecules-ch4","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/07\/21\/how-many-atoms-are-there-in-0-2-mol-of-methane-molecules-ch4\/","title":{"rendered":"How many atoms are there in 0.2 mol of methane molecules, CH4"},"content":{"rendered":"\n<p>How many atoms are there in 0.2 mol of methane molecules, CH4?<\/p>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-6-color\">The correct answer and explanation is:<\/mark><\/strong><\/p>\n\n\n\n<p>To calculate the number of atoms in 0.2 mol of methane (CH\u2084) molecules, let&#8217;s break it down step by step.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Step 1: Understand the composition of a methane molecule<\/h3>\n\n\n\n<p>Methane (CH\u2084) consists of one carbon (C) atom and four hydrogen (H) atoms, giving a total of 5 atoms per molecule of methane.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Step 2: Use Avogadro\u2019s Number<\/h3>\n\n\n\n<p>Avogadro\u2019s number, 6.022\u00d710236.022 \\times 10^{23}, represents the number of particles (atoms, molecules, ions, etc.) in one mole of a substance.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Step 3: Calculate the number of methane molecules in 0.2 mol<\/h3>\n\n\n\n<p>The number of methane molecules in 0.2 mol is calculated as: 0.2\u2009mol\u00d76.022\u00d71023\u2009molecules\/mol=1.2044\u00d71023\u2009molecules0.2 \\, \\text{mol} \\times 6.022 \\times 10^{23} \\, \\text{molecules\/mol} = 1.2044 \\times 10^{23} \\, \\text{molecules}<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Step 4: Calculate the total number of atoms<\/h3>\n\n\n\n<p>Since each methane molecule contains 5 atoms (1 carbon atom and 4 hydrogen atoms), the total number of atoms in 0.2 mol of methane is: 1.2044\u00d71023\u2009molecules\u00d75\u2009atoms\/molecule=6.022\u00d71023\u2009atoms1.2044 \\times 10^{23} \\, \\text{molecules} \\times 5 \\, \\text{atoms\/molecule} = 6.022 \\times 10^{23} \\, \\text{atoms}<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Final Answer:<\/h3>\n\n\n\n<p>There are 6.022\u00d710236.022 \\times 10^{23} atoms in 0.2 mol of methane molecules.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Explanation:<\/h3>\n\n\n\n<p>To summarize, we calculated the number of molecules in 0.2 mol of methane using Avogadro\u2019s number. Then, we multiplied the number of molecules by 5 because each methane molecule consists of 5 atoms. This gave us the total number of atoms in 0.2 mol of methane, which is 6.022\u00d710236.022 \\times 10^{23}.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>How many atoms are there in 0.2 mol of methane molecules, CH4? The correct answer and explanation is: To calculate the number of atoms in 0.2 mol of methane (CH\u2084) molecules, let&#8217;s break it down step by step. Step 1: Understand the composition of a methane molecule Methane (CH\u2084) consists of one carbon (C) atom [&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-264351","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/264351","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=264351"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/264351\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=264351"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=264351"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=264351"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}