{"id":42974,"date":"2025-06-29T12:34:24","date_gmt":"2025-06-29T12:34:24","guid":{"rendered":"https:\/\/gaviki.com\/blog\/?p=42974"},"modified":"2025-06-29T12:34:26","modified_gmt":"2025-06-29T12:34:26","slug":"how-many-millimoles-of-cano32-contain-3-1-x-1021-formula-units-of-cano32","status":"publish","type":"post","link":"https:\/\/gaviki.com\/blog\/how-many-millimoles-of-cano32-contain-3-1-x-1021-formula-units-of-cano32\/","title":{"rendered":"How many millimoles of Ca(NO3)2 contain 3.1 \u00d7 1021 formula units of Ca(NO3)2"},"content":{"rendered":"\n<p>How many millimoles of Ca(NO3)2 contain 3.1 \u00d7 1021 formula units of Ca(NO3)2? The molar mass of Ca(NO3)2 is 164.10 g\/mol.<\/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 find how many millimoles of Ca(NO\u2083)\u2082 contain 3.1 \u00d7 10\u00b2\u00b9 formula units, we can follow these steps:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Determine the number of moles from the number of formula units:<\/strong><br>Avogadro&#8217;s number (6.022 \u00d7 10\u00b2\u00b3) tells us how many formula units are in one mole of a substance. We can use this to convert from formula units to moles. Formula: moles=formula\u00a0unitsAvogadro\u2019s\u00a0number\\text{moles} = \\frac{\\text{formula units}}{\\text{Avogadro&#8217;s number}}moles=Avogadro\u2019s\u00a0numberformula\u00a0units\u200b Substituting the given values: moles\u00a0of\u00a0Ca(NO\u2083)\u2082=3.1\u00d710216.022\u00d71023\u22485.15\u00d710\u22123\u00a0moles\\text{moles of Ca(NO\u2083)\u2082} = \\frac{3.1 \\times 10^{21}}{6.022 \\times 10^{23}} \\approx 5.15 \\times 10^{-3} \\text{ moles}moles\u00a0of\u00a0Ca(NO\u2083)\u2082=6.022\u00d710233.1\u00d71021\u200b\u22485.15\u00d710\u22123\u00a0moles<\/li>\n\n\n\n<li><strong>Convert moles to millimoles:<\/strong><br>Since 1 mole = 1000 millimoles, we can convert moles to millimoles by multiplying by 1000. millimoles\u00a0of\u00a0Ca(NO\u2083)\u2082=5.15\u00d710\u22123\u00d71000=5.15\u00a0millimoles\\text{millimoles of Ca(NO\u2083)\u2082} = 5.15 \\times 10^{-3} \\times 1000 = 5.15 \\text{ millimoles}millimoles\u00a0of\u00a0Ca(NO\u2083)\u2082=5.15\u00d710\u22123\u00d71000=5.15\u00a0millimoles<\/li>\n<\/ol>\n\n\n\n<p>Thus, 3.1 \u00d7 10\u00b2\u00b9 formula units of Ca(NO\u2083)\u2082 correspond to approximately 5.15 millimoles.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Explanation:<\/h3>\n\n\n\n<p>We first used Avogadro&#8217;s number to convert from formula units to moles. Avogadro&#8217;s number is a constant that links the number of particles (atoms, molecules, or formula units) to the amount of substance in moles. Once we found the number of moles, we multiplied by 1000 to convert to millimoles, as the problem asked for the answer in millimoles rather than moles. This type of calculation is common in chemistry when dealing with amounts of substances on a molecular scale.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/gaviki.com\/blog\/wp-content\/uploads\/2025\/06\/learnexams-banner5-405.jpeg\" alt=\"\" class=\"wp-image-42980\" srcset=\"https:\/\/gaviki.com\/blog\/wp-content\/uploads\/2025\/06\/learnexams-banner5-405.jpeg 1024w, https:\/\/gaviki.com\/blog\/wp-content\/uploads\/2025\/06\/learnexams-banner5-405-300x300.jpeg 300w, https:\/\/gaviki.com\/blog\/wp-content\/uploads\/2025\/06\/learnexams-banner5-405-150x150.jpeg 150w, https:\/\/gaviki.com\/blog\/wp-content\/uploads\/2025\/06\/learnexams-banner5-405-768x768.jpeg 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>How many millimoles of Ca(NO3)2 contain 3.1 \u00d7 1021 formula units of Ca(NO3)2? The molar mass of Ca(NO3)2 is 164.10 g\/mol. The Correct Answer and Explanation is: To find how many millimoles of Ca(NO\u2083)\u2082 contain 3.1 \u00d7 10\u00b2\u00b9 formula units, we can follow these steps: Thus, 3.1 \u00d7 10\u00b2\u00b9 formula units of Ca(NO\u2083)\u2082 correspond to [&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-42974","post","type-post","status-publish","format-standard","hentry","category-quiz-questions"],"_links":{"self":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/42974","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=42974"}],"version-history":[{"count":1,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/42974\/revisions"}],"predecessor-version":[{"id":42981,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/42974\/revisions\/42981"}],"wp:attachment":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/media?parent=42974"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/categories?post=42974"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/tags?post=42974"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}