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What are the formula weights of (a) CO2 and CaCO3 ?

What are the formula weights of (a) CO2 and CaCO3 ?

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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### Problem Statement **Question:** What are the formula weights of (a) CO₂ and CaCO₃? **Answer:** Use the editor to format your answer. ### Analysis To calculate the formula weight (also known as molecular weight) of a compound, sum the atomic weights of all atoms in its chemical formula. 1. **CO₂ (Carbon Dioxide):** - Carbon (C) = 12.01 g/mol - Oxygen (O) = 16.00 g/mol - Formula weight of CO₂ = 12.01 + 2(16.00) = 44.01 g/mol 2. **CaCO₃ (Calcium Carbonate):** - Calcium (Ca) = 40.08 g/mol - Carbon (C) = 12.01 g/mol - Oxygen (O) = 16.00 g/mol - Formula weight of CaCO₃ = 40.08 + 12.01 + 3(16.00) = 100.09 g/mol ### Conclusion The formula weight of CO₂ is 44.01 g/mol, and the formula weight of CaCO₃ is 100.09 g/mol.
Transcribed Image Text:### Problem Statement **Question:** What are the formula weights of (a) CO₂ and CaCO₃? **Answer:** Use the editor to format your answer. ### Analysis To calculate the formula weight (also known as molecular weight) of a compound, sum the atomic weights of all atoms in its chemical formula. 1. **CO₂ (Carbon Dioxide):** - Carbon (C) = 12.01 g/mol - Oxygen (O) = 16.00 g/mol - Formula weight of CO₂ = 12.01 + 2(16.00) = 44.01 g/mol 2. **CaCO₃ (Calcium Carbonate):** - Calcium (Ca) = 40.08 g/mol - Carbon (C) = 12.01 g/mol - Oxygen (O) = 16.00 g/mol - Formula weight of CaCO₃ = 40.08 + 12.01 + 3(16.00) = 100.09 g/mol ### Conclusion The formula weight of CO₂ is 44.01 g/mol, and the formula weight of CaCO₃ is 100.09 g/mol.
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