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4. Calculate the percent composition of carbon in CaCO,.

4. Calculate the percent composition of carbon in CaCO,.

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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10:51 * :A 0 40% Ch26 Percent Comp... Name Date Ch 26 - Percent Composition Practice Determine the percentage composition of each of the compounds below. 1. Naci 2. KMno, 3. Mg(NO:) 4. Calculate the percent composition of carbon in CaCo,. 5. How many grams of oxygen can be produced from the decomposition of 100.0 g of KCIOo,? 6. How much iron can be recovered from 25.0g of Fe;0,? 7. A chemistry student took 10.0g of an unknown hydrate and heated it in order to drive off the water of hydration. The mass of the anhydrous salt (what's left after the water is gone) was 5.83 g. What was the percent water in the original hydrate sample?
Transcribed Image Text:10:51 * :A 0 40% Ch26 Percent Comp... Name Date Ch 26 - Percent Composition Practice Determine the percentage composition of each of the compounds below. 1. Naci 2. KMno, 3. Mg(NO:) 4. Calculate the percent composition of carbon in CaCo,. 5. How many grams of oxygen can be produced from the decomposition of 100.0 g of KCIOo,? 6. How much iron can be recovered from 25.0g of Fe;0,? 7. A chemistry student took 10.0g of an unknown hydrate and heated it in order to drive off the water of hydration. The mass of the anhydrous salt (what's left after the water is gone) was 5.83 g. What was the percent water in the original hydrate sample?
Expert Solution
Step 1

Question 4)

Given compound : Calcium Carbonate (CaCO3)

Percent composition of of Carbon in CaCO3 = ?

Mass of C in 1 mole of the CaCO3 = 1×12 g = 12 g

Molar mass of CaCO3 = (1×40 + 1×12  + 3×16) g = 100 g

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