Number of moles and formula units in 100g of KClO3 Calculate each of the following quantities<\/p>\n\n\n\n
The correct answer and explanation is:<\/mark><\/strong><\/p>\n\n\n\n Correct Answer:<\/strong> Explanation:<\/strong> Next, use the basic mole formula: To find the number of formula units, remember that one mole of any substance contains Avogadro\u2019s number of particles, which is 6.022 \u00d7 10\u00b2\u00b3. Therefore, multiply the moles by Avogadro\u2019s number: This calculation shows how mass, molar mass, and Avogadro\u2019s number connect mass at the macroscopic scale with particles at the atomic level. This relationship allows chemists to determine how much of a substance is needed or produced in a reaction. Knowing moles and formula units is vital for stoichiometry, balancing equations, and preparing solutions in labs and industries. It bridges laboratory measurements and atomic-level understanding, forming the basis for predicting yields and understanding chemical reactions quantitatively.<\/p>\n","protected":false},"excerpt":{"rendered":" Number of moles and formula units in 100g of KClO3 Calculate each of the following quantities The correct answer and explanation is: Correct Answer:Number of moles: 0.815 molNumber of formula units: 4.91 \u00d7 10\u00b2\u00b3 formula units Explanation:Potassium chlorate (KClO\u2083) is a chemical compound used in laboratories and industries as an oxidizing agent. To determine the […]<\/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-41607","post","type-post","status-publish","format-standard","hentry","category-quiz-questions"],"_links":{"self":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/41607","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=41607"}],"version-history":[{"count":1,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/41607\/revisions"}],"predecessor-version":[{"id":41608,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/41607\/revisions\/41608"}],"wp:attachment":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/media?parent=41607"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/categories?post=41607"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/tags?post=41607"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
Number of moles:<\/strong> 0.815 mol
Number of formula units:<\/strong> 4.91 \u00d7 10\u00b2\u00b3 formula units<\/p>\n\n\n\n
Potassium chlorate (KClO\u2083) is a chemical compound used in laboratories and industries as an oxidizing agent. To determine the number of moles in 100 grams of KClO\u2083, first calculate its molar mass. The atomic masses are: potassium (K) is about 39.10 g\/mol, chlorine (Cl) is about 35.45 g\/mol, and oxygen (O) is about 16.00 g\/mol. Since there are three oxygen atoms in the formula, the total molar mass of oxygen in one formula unit is 3 \u00d7 16.00 = 48.00 g\/mol. Adding these up gives the molar mass of KClO\u2083 as 39.10 + 35.45 + 48.00 = 122.55 g\/mol.<\/p>\n\n\n\n
Number of moles = given mass (g) \/ molar mass (g\/mol)<\/strong>
So, the number of moles in 100 g of KClO\u2083 is 100 g \u00f7 122.55 g\/mol = 0.815 mol.<\/p>\n\n\n\n
Number of formula units = number of moles \u00d7 Avogadro\u2019s number<\/strong>
So, 0.815 mol \u00d7 6.022 \u00d7 10\u00b2\u00b3 = 4.91 \u00d7 10\u00b2\u00b3 formula units.<\/p>\n\n\n\n