{"id":37047,"date":"2025-06-25T12:02:06","date_gmt":"2025-06-25T12:02:06","guid":{"rendered":"https:\/\/gaviki.com\/blog\/?p=37047"},"modified":"2025-06-25T12:02:07","modified_gmt":"2025-06-25T12:02:07","slug":"in-the-gaseous-state-chlorine-exists-as-a-diatomic-molecule-cl2","status":"publish","type":"post","link":"https:\/\/gaviki.com\/blog\/in-the-gaseous-state-chlorine-exists-as-a-diatomic-molecule-cl2\/","title":{"rendered":"In the gaseous state, chlorine exists as a diatomic molecule Cl2"},"content":{"rendered":"\n<p>In the gaseous state, chlorine exists as a diatomic molecule Cl2 (Molar mass = 70.9 g\/mol). Calculate the number of moles of chlorine present in 140 g of chlorine gas.<\/p>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">The Correct Answer and Explanation is:<\/mark><\/strong><\/p>\n\n\n\n<p>To calculate the number of moles of chlorine gas (Cl\u2082) in 140 g, we use the formula:Moles=Mass&nbsp;(g)Molar&nbsp;Mass&nbsp;(g\/mol)\\text{Moles} = \\frac{\\text{Mass (g)}}{\\text{Molar Mass (g\/mol)}}Moles=Molar&nbsp;Mass&nbsp;(g\/mol)Mass&nbsp;(g)\u200b<\/p>\n\n\n\n<p>Given:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Mass of chlorine gas = 140 g<\/li>\n\n\n\n<li>Molar mass of Cl\u2082 = 70.9 g\/mol<\/li>\n<\/ul>\n\n\n\n<p>Moles&nbsp;of&nbsp;Cl\u2082=140\u2009g70.9\u2009g\/mol\u22481.975\u2009mol\\text{Moles of Cl\u2082} = \\frac{140 \\, \\text{g}}{70.9 \\, \\text{g\/mol}} \\approx 1.975 \\, \\text{mol}Moles&nbsp;of&nbsp;Cl\u2082=70.9g\/mol140g\u200b\u22481.975mol<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Final Answer:<\/h3>\n\n\n\n<p><strong>Approximately 1.975 moles of chlorine gas are present in 140 g of Cl\u2082.<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Explanation<\/h3>\n\n\n\n<p>Chlorine in its natural gaseous form exists as a diatomic molecule, meaning two chlorine atoms are bonded together, forming Cl\u2082. The molar mass of one chlorine atom is about 35.45 g\/mol. Since Cl\u2082 has two chlorine atoms, its molar mass is:35.45\u2009g\/mol\u00d72=70.9\u2009g\/mol35.45 \\, \\text{g\/mol} \\times 2 = 70.9 \\, \\text{g\/mol}35.45g\/mol\u00d72=70.9g\/mol<\/p>\n\n\n\n<p>The mole is a fundamental unit in chemistry that represents a quantity of particles, typically atoms or molecules. One mole of a substance contains Avogadro\u2019s number of entities, which is approximately 6.022\u00d710236.022 \\times 10^{23}6.022\u00d71023.<\/p>\n\n\n\n<p>To determine how many moles are in a given mass of a substance, divide the mass of the sample by its molar mass. In this problem, we are given a sample of chlorine gas weighing 140 grams. Using the formula for calculating moles:Moles=MassMolar&nbsp;Mass=14070.9\u22481.975\u2009mol\\text{Moles} = \\frac{\\text{Mass}}{\\text{Molar Mass}} = \\frac{140}{70.9} \\approx 1.975 \\, \\text{mol}Moles=Molar&nbsp;MassMass\u200b=70.9140\u200b\u22481.975mol<\/p>\n\n\n\n<p>This means there are about 1.975 moles of chlorine gas molecules in the 140 g sample.<\/p>\n\n\n\n<p>This calculation is essential in chemical reactions where stoichiometry is used to determine reactant and product quantities. Knowing the number of moles allows chemists to predict how much of a substance will be consumed or produced during a reaction. For chlorine gas, this value can be used to find how much it will react with another substance, such as hydrogen, to form compounds like HCl.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"852\" height=\"1024\" src=\"https:\/\/gaviki.com\/blog\/wp-content\/uploads\/2025\/06\/learnexams-banner8-848.jpeg\" alt=\"\" class=\"wp-image-37050\" srcset=\"https:\/\/gaviki.com\/blog\/wp-content\/uploads\/2025\/06\/learnexams-banner8-848.jpeg 852w, https:\/\/gaviki.com\/blog\/wp-content\/uploads\/2025\/06\/learnexams-banner8-848-250x300.jpeg 250w, https:\/\/gaviki.com\/blog\/wp-content\/uploads\/2025\/06\/learnexams-banner8-848-768x923.jpeg 768w\" sizes=\"auto, (max-width: 852px) 100vw, 852px\" \/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>In the gaseous state, chlorine exists as a diatomic molecule Cl2 (Molar mass = 70.9 g\/mol). Calculate the number of moles of chlorine present in 140 g of chlorine gas. The Correct Answer and Explanation is: To calculate the number of moles of chlorine gas (Cl\u2082) in 140 g, we use the formula:Moles=Mass&nbsp;(g)Molar&nbsp;Mass&nbsp;(g\/mol)\\text{Moles} = \\frac{\\text{Mass [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-37047","post","type-post","status-publish","format-standard","hentry","category-quiz-questions"],"_links":{"self":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/37047","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/comments?post=37047"}],"version-history":[{"count":1,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/37047\/revisions"}],"predecessor-version":[{"id":37051,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/37047\/revisions\/37051"}],"wp:attachment":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/media?parent=37047"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/categories?post=37047"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/tags?post=37047"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}