{"id":188276,"date":"2025-02-06T15:18:44","date_gmt":"2025-02-06T15:18:44","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=188276"},"modified":"2025-02-06T15:18:47","modified_gmt":"2025-02-06T15:18:47","slug":"the-formula-for-butane-is-c4h10-2","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/02\/06\/the-formula-for-butane-is-c4h10-2\/","title":{"rendered":"The formula for butane is C4H10"},"content":{"rendered":"\n<p>The formula for butane is C4H10. From you model of propane, construct all possible isomers of butane by replacing a hydrogen with a methyl group. How many isomers of butane are there? Give their structural formula and IUPAC names. There are four isomers corresponding to the formula C4H9CI. Write their structural formulas and name them. How many isomers of C4H8Cl2 are there? Use your model to help answer the question. Draw their formula and name all the isomers of C4H8Cl2.<\/p>\n\n\n\n<ol start=\"5\" class=\"wp-block-list\">\n<li>Draw the structural formulas and names for all the isomers of butane.<\/li>\n\n\n\n<li>Draw the structural formulas and names for all the isomers of:<br>a. C4H8CI<br>b. C4H8Cl2<br>E. Pentane<br>Use your models in a systematic manner to determine how many isomers there are for the formula C5H12. Draw their structural formulas and name them. Draw and name all of the isomers of C5H11Cl. Give the pure IUPAC name and the name using IUPAC reserved names for certain substituents.<\/li>\n\n\n\n<li>Draw the structural formulas and names for all the isomers of C5H12.<\/li>\n\n\n\n<li>Draw the structural formula and names for all the isomers of C5H11CI.<\/li>\n<\/ol>\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\">Isomers of Butane (C\u2084H\u2081\u2080)<\/h3>\n\n\n\n<p>Butane (C\u2084H\u2081\u2080) has two structural isomers:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>n-Butane<\/strong> (straight-chain butane)<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Structural formula:<\/strong> CH\u2083-CH\u2082-CH\u2082-CH\u2083<\/li>\n\n\n\n<li><strong>IUPAC name:<\/strong> Butane<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Isobutane<\/strong> (methylpropane)<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Structural formula:<\/strong> (CH\u2083)\u2082CH-CH\u2083<\/li>\n\n\n\n<li><strong>IUPAC name:<\/strong> 2-Methylpropane<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Isomers of C\u2084H\u2089Cl<\/h3>\n\n\n\n<p>When chlorine (Cl) replaces a hydrogen atom in butane, we get four isomers of C\u2084H\u2089Cl, corresponding to the four possible positions of chlorine on the carbon chain:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>1-Chlorobutane<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Structural formula:<\/strong> CH\u2083-CH\u2082-CH\u2082-CH\u2082Cl<\/li>\n\n\n\n<li><strong>IUPAC name:<\/strong> 1-Chlorobutane<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>2-Chlorobutane<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Structural formula:<\/strong> CH\u2083-CH\u2082-CH(Cl)-CH\u2083<\/li>\n\n\n\n<li><strong>IUPAC name:<\/strong> 2-Chlorobutane<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>1-Chloro-2-methylpropane<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Structural formula:<\/strong> (CH\u2083)\u2082CH-CH\u2082Cl<\/li>\n\n\n\n<li><strong>IUPAC name:<\/strong> 1-Chloro-2-methylpropane<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>2-Chloro-2-methylpropane<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Structural formula:<\/strong> (CH\u2083)\u2083CCl<\/li>\n\n\n\n<li><strong>IUPAC name:<\/strong> 2-Chloro-2-methylpropane<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Isomers of C\u2084H\u2088Cl\u2082<\/h3>\n\n\n\n<p>For C\u2084H\u2088Cl\u2082, there are <strong>three possible isomers<\/strong>. The placement of the chlorine atoms on the carbon chain can vary:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>1,2-Dichlorobutane<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Structural formula:<\/strong> CH\u2083-CH(Cl)-CH(Cl)-CH\u2083<\/li>\n\n\n\n<li><strong>IUPAC name:<\/strong> 1,2-Dichlorobutane<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>1,3-Dichlorobutane<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Structural formula:<\/strong> CH\u2083-CH\u2082-CH(Cl)-CH\u2082Cl<\/li>\n\n\n\n<li><strong>IUPAC name:<\/strong> 1,3-Dichlorobutane<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>1,4-Dichlorobutane<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Structural formula:<\/strong> CH\u2083-CH\u2082-CH\u2082-CH\u2082Cl<\/li>\n\n\n\n<li><strong>IUPAC name:<\/strong> 1,4-Dichlorobutane<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Isomers of C\u2084H\u2088Cl<\/h3>\n\n\n\n<p>For C\u2084H\u2088Cl (monochloro butene), there are <strong>two isomers<\/strong>:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>But-1-en-3-chloride<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Structural formula:<\/strong> CH\u2082=CH-CH\u2082-CH\u2082Cl<\/li>\n\n\n\n<li><strong>IUPAC name:<\/strong> But-1-en-3-chloride<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>But-2-en-1-chloride<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Structural formula:<\/strong> CH\u2083-CH=CH-CH\u2082Cl<\/li>\n\n\n\n<li><strong>IUPAC name:<\/strong> But-2-en-1-chloride<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Isomers of Pentane (C\u2085H\u2081\u2082)<\/h3>\n\n\n\n<p>Pentane (C\u2085H\u2081\u2082) has <strong>three structural isomers<\/strong>:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>n-Pentane<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Structural formula:<\/strong> CH\u2083-CH\u2082-CH\u2082-CH\u2082-CH\u2083<\/li>\n\n\n\n<li><strong>IUPAC name:<\/strong> Pentane<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Isopentane<\/strong> (methylbutane)<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Structural formula:<\/strong> CH\u2083-CH\u2082-CH(CH\u2083)-CH\u2083<\/li>\n\n\n\n<li><strong>IUPAC name:<\/strong> 2-Methylbutane<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Neopentane<\/strong> (dimethylpropane)<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Structural formula:<\/strong> (CH\u2083)\u2083C-CH\u2083<\/li>\n\n\n\n<li><strong>IUPAC name:<\/strong> 2,2-Dimethylpropane<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Isomers of C\u2085H\u2081\u2081Cl<\/h3>\n\n\n\n<p>For C\u2085H\u2081\u2081Cl (chloropentane), there are <strong>five isomers<\/strong>:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>1-Chloropentane<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Structural formula:<\/strong> CH\u2083-CH\u2082-CH\u2082-CH\u2082-CH\u2082Cl<\/li>\n\n\n\n<li><strong>IUPAC name:<\/strong> 1-Chloropentane<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>2-Chloropentane<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Structural formula:<\/strong> CH\u2083-CH\u2082-CH\u2082-CH(Cl)-CH\u2083<\/li>\n\n\n\n<li><strong>IUPAC name:<\/strong> 2-Chloropentane<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>3-Chloropentane<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Structural formula:<\/strong> CH\u2083-CH\u2082-CH(Cl)-CH\u2082-CH\u2083<\/li>\n\n\n\n<li><strong>IUPAC name:<\/strong> 3-Chloropentane<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>1-Chloro-2-methylbutane<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Structural formula:<\/strong> CH\u2083-CH\u2082-CH(CH\u2083)-CH\u2082Cl<\/li>\n\n\n\n<li><strong>IUPAC name:<\/strong> 1-Chloro-2-methylbutane<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>2-Chloro-2-methylbutane<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Structural formula:<\/strong> CH\u2083-CH(CH\u2083)-CH\u2082-CH\u2082Cl<\/li>\n\n\n\n<li><strong>IUPAC name:<\/strong> 2-Chloro-2-methylbutane<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Explanation<\/h3>\n\n\n\n<p>The number of isomers is determined by the flexibility of carbon chains and the positions where substituents like chlorine or methyl groups can be attached. In the case of butane, both straight-chain (n-butane) and branched-chain (isobutane) forms exist. For compounds with chlorine substituents, like C\u2084H\u2089Cl, each chlorine atom can be attached at various positions, leading to different isomers. Similarly, as the number of carbon atoms increases (such as in pentane), the number of possible isomers increases, as each possible arrangement of the carbon backbone and the positioning of substituents leads to a different compound.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The formula for butane is C4H10. From you model of propane, construct all possible isomers of butane by replacing a hydrogen with a methyl group. How many isomers of butane are there? Give their structural formula and IUPAC names. There are four isomers corresponding to the formula C4H9CI. Write their structural formulas and name them. [&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-188276","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/188276","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=188276"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/188276\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=188276"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=188276"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=188276"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}