{"id":204658,"date":"2025-03-22T12:12:28","date_gmt":"2025-03-22T12:12:28","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=204658"},"modified":"2025-03-22T12:12:30","modified_gmt":"2025-03-22T12:12:30","slug":"what-is-the-mass-in-grams-of-one-formula-unit-of-na2so3","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/03\/22\/what-is-the-mass-in-grams-of-one-formula-unit-of-na2so3\/","title":{"rendered":"What is the mass in grams of one formula unit of Na2SO3"},"content":{"rendered":"\n<p>What is the mass in grams of one formula unit of Na2SO3<\/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>To calculate the mass in grams of one formula unit of sodium sulfite (Na\u2082SO\u2083), we need to determine the molar mass of the compound and then use Avogadro&#8217;s number to find the mass of a single formula unit.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Step 1: Determine the Molar Mass of Na\u2082SO\u2083<\/h3>\n\n\n\n<p>The molar mass is calculated by adding the atomic masses of each element in the formula. The atomic masses of sodium (Na), sulfur (S), and oxygen (O) are as follows:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Sodium (Na): 22.99 g\/mol<\/li>\n\n\n\n<li>Sulfur (S): 32.07 g\/mol<\/li>\n\n\n\n<li>Oxygen (O): 16.00 g\/mol<\/li>\n<\/ul>\n\n\n\n<p>The formula for sodium sulfite is Na\u2082SO\u2083, meaning it contains:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>2 sodium atoms<\/li>\n\n\n\n<li>1 sulfur atom<\/li>\n\n\n\n<li>3 oxygen atoms<\/li>\n<\/ul>\n\n\n\n<p>Now, calculate the molar mass:<br>[<br>\\text{Molar mass of Na\u2082SO\u2083} = (2 \\times 22.99) + (1 \\times 32.07) + (3 \\times 16.00)<br>]<br>[<br>\\text{Molar mass of Na\u2082SO\u2083} = 45.98 + 32.07 + 48.00 = 126.05 \\, \\text{g\/mol}<br>]<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Step 2: Use Avogadro&#8217;s Number to Find the Mass of One Formula Unit<\/h3>\n\n\n\n<p>Avogadro&#8217;s number is (6.022 \\times 10^{23}), which tells us the number of formula units in one mole of a substance.<\/p>\n\n\n\n<p>To find the mass of one formula unit, divide the molar mass by Avogadro&#8217;s number:<br>[<br>\\text{Mass of one formula unit} = \\frac{\\text{Molar mass}}{\\text{Avogadro&#8217;s number}} = \\frac{126.05 \\, \\text{g\/mol}}{6.022 \\times 10^{23}}<br>]<br>[<br>\\text{Mass of one formula unit} \\approx 2.09 \\times 10^{-22} \\, \\text{grams}<br>]<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Conclusion<\/h3>\n\n\n\n<p>The mass of one formula unit of Na\u2082SO\u2083 is approximately <strong>2.09 \u00d7 10\u207b\u00b2\u00b2 grams<\/strong>.<\/p>\n\n\n\n<p>This method uses the basic concepts of molar mass and Avogadro&#8217;s number to determine the mass of a single formula unit of a compound. By dividing the molar mass by Avogadro&#8217;s number, we convert the macroscopic mass of a mole of the substance to the mass of a single formula unit.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>What is the mass in grams of one formula unit of Na2SO3 The correct answer and explanation is : To calculate the mass in grams of one formula unit of sodium sulfite (Na\u2082SO\u2083), we need to determine the molar mass of the compound and then use Avogadro&#8217;s number to find the mass of a single [&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-204658","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/204658","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=204658"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/204658\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=204658"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=204658"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=204658"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}