{"id":191004,"date":"2025-02-14T05:00:13","date_gmt":"2025-02-14T05:00:13","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=191004"},"modified":"2025-02-14T05:00:15","modified_gmt":"2025-02-14T05:00:15","slug":"the-combustion-of-hexane-c6h14-a-component-of-gasoline-is-represented-by-the-balanced-chemical-equation","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/02\/14\/the-combustion-of-hexane-c6h14-a-component-of-gasoline-is-represented-by-the-balanced-chemical-equation\/","title":{"rendered":"The combustion of hexane (C6H14), a component of gasoline, is represented by the balanced chemical equation"},"content":{"rendered":"\n<p>The combustion of hexane (C6H14), a component of gasoline, is represented by the balanced chemical equation: 2 C6H14(I) + 19 O2(g) \u00ae 12 CO2(g) + 14 H2O(g). If 1.0 mole of hexane undergoes combustion, moles of O2 are required.<br>a. 19 moles<br>b. 7 moles<br>c. 9.5 moles<br>d. 26 moles<br>e. 21 moles<\/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>The correct answer is <strong>c. 9.5 moles<\/strong>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Explanation:<\/h3>\n\n\n\n<p>The balanced chemical equation for the combustion of hexane is: 2C6H14(l)+19O2(g)\u219212CO2(g)+14H2O(g)2 C_6H_{14}(l) + 19 O_2(g) \\rightarrow 12 CO_2(g) + 14 H_2O(g)<\/p>\n\n\n\n<p>This equation tells us that <strong>2 moles<\/strong> of hexane react with <strong>19 moles<\/strong> of oxygen gas (<strong>O\u2082<\/strong>). The relationship between hexane and oxygen is a <strong>2:19 ratio<\/strong>.<\/p>\n\n\n\n<p>To determine the amount of oxygen needed for <strong>1 mole<\/strong> of hexane, we use a proportion: 19&nbsp;moles&nbsp;of&nbsp;O22&nbsp;moles&nbsp;of&nbsp;C6H14=X&nbsp;moles&nbsp;of&nbsp;O2\/1&nbsp;mole&nbsp;of&nbsp;C6H14\\frac{19 \\text{ moles of } O_2}{2 \\text{ moles of } C_6H_{14}} = X \\text{ moles of } O_2 \/ 1 \\text{ mole of } C_6H_{14}<\/p>\n\n\n\n<p>Solving for XX: X=192=9.5&nbsp;moles&nbsp;of&nbsp;O2X = \\frac{19}{2} = 9.5 \\text{ moles of } O_2<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Why is this the correct answer?<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The reaction follows the law of conservation of mass, meaning the number of atoms of each element must be the same on both sides.<\/li>\n\n\n\n<li>The balanced equation indicates that 2 moles of <strong>C\u2086H\u2081\u2084<\/strong> require <strong>19 moles of O\u2082<\/strong>.<\/li>\n\n\n\n<li>If we reduce this proportion to 1 mole of <strong>C\u2086H\u2081\u2084<\/strong>, the required amount of oxygen is <strong>9.5 moles<\/strong>.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Why are the other choices incorrect?<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>19 moles (option a)<\/strong> is the amount needed for <strong>2 moles<\/strong> of hexane.<\/li>\n\n\n\n<li><strong>7 moles (option b)<\/strong> is not derived from the correct ratio.<\/li>\n\n\n\n<li><strong>26 moles (option d)<\/strong> is too high.<\/li>\n\n\n\n<li><strong>21 moles (option e)<\/strong> does not match the correct proportion.<\/li>\n<\/ul>\n\n\n\n<p>Thus, the correct answer is <strong>9.5 moles of O\u2082<\/strong>, which corresponds to <strong>option c<\/strong>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The combustion of hexane (C6H14), a component of gasoline, is represented by the balanced chemical equation: 2 C6H14(I) + 19 O2(g) \u00ae 12 CO2(g) + 14 H2O(g). If 1.0 mole of hexane undergoes combustion, moles of O2 are required.a. 19 molesb. 7 molesc. 9.5 molesd. 26 molese. 21 moles The Correct Answer and Explanation is [&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-191004","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/191004","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=191004"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/191004\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=191004"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=191004"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=191004"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}