{"id":258217,"date":"2025-07-18T06:11:48","date_gmt":"2025-07-18T06:11:48","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=258217"},"modified":"2025-07-18T06:11:50","modified_gmt":"2025-07-18T06:11:50","slug":"what-is-the-molecular-mass-of-cu2o","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/07\/18\/what-is-the-molecular-mass-of-cu2o\/","title":{"rendered":"What is the molecular mass of Cu2O"},"content":{"rendered":"\n
What is the molecular mass of Cu2O?<\/pre>\n\n\n\n
The Correct Answer and Explanation is:<\/mark><\/strong><\/p>\n\n\n\n
The molecular mass of copper(I) oxide (Cu2O) can be determined by summing the atomic masses of its constituent elements.<\/p>\n\n\n\n
Atomic Masses:<\/h3>\n\n\n\n
    \n
  • Copper (Cu): 63.55 g\/mol<\/li>\n\n\n\n
  • Oxygen (O): 16.00 g\/mol<\/li>\n<\/ul>\n\n\n\n
    Molecular Mass Calculation:<\/h3>\n\n\n\n
    Cu2O consists of two copper (Cu) atoms and one oxygen (O) atom. Therefore, the molecular mass of Cu2O is calculated as:Molecular mass of Cu2O=2\u00d7atomic mass of Cu+1\u00d7atomic mass of O\\text{Molecular mass of Cu2O} = 2 \\times \\text{atomic mass of Cu} + 1 \\times \\text{atomic mass of O}Molecular mass of Cu2O=2\u00d7atomic mass of Cu+1\u00d7atomic mass of OMolecular mass of Cu2O=2\u00d763.55\u2009g\/mol+1\u00d716.00\u2009g\/mol\\text{Molecular mass of Cu2O} = 2 \\times 63.55 \\, \\text{g\/mol} + 1 \\times 16.00 \\, \\text{g\/mol}Molecular mass of Cu2O=2\u00d763.55g\/mol+1\u00d716.00g\/molMolecular mass of Cu2O=127.10\u2009g\/mol+16.00\u2009g\/mol\\text{Molecular mass of Cu2O} = 127.10 \\, \\text{g\/mol} + 16.00 \\, \\text{g\/mol}Molecular mass of Cu2O=127.10g\/mol+16.00g\/molMolecular mass of Cu2O=143.10\u2009g\/mol\\text{Molecular mass of Cu2O} = 143.10 \\, \\text{g\/mol}Molecular mass of Cu2O=143.10g\/mol<\/p>\n\n\n\n
    Explanation:<\/h3>\n\n\n\n
      \n
    1. Copper (Cu):<\/strong> The element copper has an atomic mass of 63.55 g\/mol. Since there are two copper atoms in Cu2O, we multiply this by 2 to get the total mass contribution of copper: 2\u00d763.55=127.10\u2009g\/mol2 \\times 63.55 = 127.10 \\, \\text{g\/mol}2\u00d763.55=127.10g\/mol.<\/li>\n\n\n\n
    2. Oxygen (O):<\/strong> Oxygen has an atomic mass of 16.00 g\/mol. Since there is one oxygen atom in Cu2O, its contribution is simply 1\u00d716.00=16.00\u2009g\/mol1 \\times 16.00 = 16.00 \\, \\text{g\/mol}1\u00d716.00=16.00g\/mol.<\/li>\n\n\n\n
    3. Summing the contributions:<\/strong> The total molecular mass of Cu2O is the sum of the contributions from copper and oxygen, which equals 127.10+16.00=143.10\u2009g\/mol127.10 + 16.00 = 143.10 \\, \\text{g\/mol}127.10+16.00=143.10g\/mol.<\/li>\n<\/ol>\n\n\n\n
      Thus, the molecular mass of Cu2O is 143.10 g\/mol<\/strong>.<\/p>\n\n\n\n
      \"\"<\/figure>\n","protected":false},"excerpt":{"rendered":"
      What is the molecular mass of Cu2O? The Correct Answer and Explanation is: The molecular mass of copper(I) oxide (Cu2O) can be determined by summing the atomic masses of its constituent elements. Atomic Masses: Molecular Mass Calculation: Cu2O consists of two copper (Cu) atoms and one oxygen (O) atom. Therefore, the molecular mass of Cu2O […]<\/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-258217","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/258217","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=258217"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/258217\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=258217"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=258217"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=258217"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}