{"id":31460,"date":"2025-06-22T02:40:51","date_gmt":"2025-06-22T02:40:51","guid":{"rendered":"https:\/\/gaviki.com\/blog\/?p=31460"},"modified":"2025-06-22T02:40:53","modified_gmt":"2025-06-22T02:40:53","slug":"what-is-the-formula-weight-of-barium-phosphate-ba3po42","status":"publish","type":"post","link":"https:\/\/gaviki.com\/blog\/what-is-the-formula-weight-of-barium-phosphate-ba3po42\/","title":{"rendered":"What is the formula weight of barium phosphate, Ba3(PO4)2"},"content":{"rendered":"\n<p> What is the formula weight of barium phosphate, Ba3(PO4)2? 601.9 amu<\/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><strong>Correct Answer: 601.9 amu<\/strong><\/p>\n\n\n\n<p><strong>Explanation:<\/strong><\/p>\n\n\n\n<p>The formula weight (also called the molecular weight or molar mass) of a compound is the sum of the atomic weights of all atoms in its chemical formula. In this case, we are asked to find the formula weight of <strong>barium phosphate<\/strong>, which has the chemical formula <strong>Ba\u2083(PO\u2084)\u2082<\/strong>.<\/p>\n\n\n\n<p>To calculate the formula weight, we need to consider how many atoms of each element are present and multiply by their respective atomic masses. Let&#8217;s break this down:<\/p>\n\n\n\n<p><strong>Step 1: Determine the number of atoms:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Barium (Ba): 3 atoms<\/li>\n\n\n\n<li>Phosphorus (P): 2 atoms (since there are 2 phosphate groups)<\/li>\n\n\n\n<li>Oxygen (O): 8 atoms (each phosphate group has 4 oxygen atoms \u00d7 2)<\/li>\n<\/ul>\n\n\n\n<p><strong>Step 2: Use the atomic weights from the periodic table:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Barium (Ba): 137.33 amu<\/li>\n\n\n\n<li>Phosphorus (P): 30.97 amu<\/li>\n\n\n\n<li>Oxygen (O): 16.00 amu<\/li>\n<\/ul>\n\n\n\n<p><strong>Step 3: Multiply the atomic weights by the number of atoms:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Barium: 3 \u00d7 137.33 = 411.99 amu<\/li>\n\n\n\n<li>Phosphorus: 2 \u00d7 30.97 = 61.94 amu<\/li>\n\n\n\n<li>Oxygen: 8 \u00d7 16.00 = 128.00 amu<\/li>\n<\/ul>\n\n\n\n<p><strong>Step 4: Add all the contributions together:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Total formula weight = 411.99 + 61.94 + 128.00 = <strong>601.93 amu<\/strong><\/li>\n<\/ul>\n\n\n\n<p>Rounded to one decimal place, the formula weight of <strong>Ba\u2083(PO\u2084)\u2082<\/strong> is <strong>601.9 amu<\/strong>.<\/p>\n\n\n\n<p>This value represents the mass of one formula unit of barium phosphate in atomic mass units (amu), which is essential for stoichiometric calculations in chemistry such as determining moles, mass relationships, and reaction yields.<\/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-banner8-342.jpeg\" alt=\"\" class=\"wp-image-31461\" srcset=\"https:\/\/gaviki.com\/blog\/wp-content\/uploads\/2025\/06\/learnexams-banner8-342.jpeg 852w, https:\/\/gaviki.com\/blog\/wp-content\/uploads\/2025\/06\/learnexams-banner8-342-250x300.jpeg 250w, https:\/\/gaviki.com\/blog\/wp-content\/uploads\/2025\/06\/learnexams-banner8-342-768x923.jpeg 768w\" sizes=\"auto, (max-width: 852px) 100vw, 852px\" \/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>What is the formula weight of barium phosphate, Ba3(PO4)2? 601.9 amu The Correct Answer and Explanation is: Correct Answer: 601.9 amu Explanation: The formula weight (also called the molecular weight or molar mass) of a compound is the sum of the atomic weights of all atoms in its chemical formula. In this case, we are [&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-31460","post","type-post","status-publish","format-standard","hentry","category-quiz-questions"],"_links":{"self":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/31460","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=31460"}],"version-history":[{"count":1,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/31460\/revisions"}],"predecessor-version":[{"id":31462,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/31460\/revisions\/31462"}],"wp:attachment":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/media?parent=31460"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/categories?post=31460"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/tags?post=31460"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}