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12. A 4.85-g sample of solid ammonium chloride is placed in a 1.50-L evacuated flask and heated until it decomposes, as shown below: NH&CI (s) → NH3 (g) + HCI (g) After the reaction has completed, the total pressure in the flask is measured as 4.40 atm at 202°C. Based on this information, what percent of the ammonium chloride decomposed? 13. A mixture of gases containing 12.45 g of H2, 60.67 g of N2 and 2.38 g of NH3 are placed in a 10.00 L container at 90°C. What is the total pressure (in atm) and partial pressure of each component in the gas mixture? 14. Which has a higher average speed, H2 at 150 K or He at 375°C?

12. A 4.85-g sample of solid ammonium chloride is placed in a 1.50-L evacuated flask and heated until it decomposes, as shown below: NH&CI (s) → NH3 (g) + HCI (g) After the reaction has completed, the total pressure in the flask is measured as 4.40 atm at 202°C. Based on this information, what percent of the ammonium chloride decomposed? 13. A mixture of gases containing 12.45 g of H2, 60.67 g of N2 and 2.38 g of NH3 are placed in a 10.00 L container at 90°C. What is the total pressure (in atm) and partial pressure of each component in the gas mixture? 14. Which has a higher average speed, H2 at 150 K or He at 375°C?

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 12:** A 4.85-g sample of solid ammonium chloride is placed in a 1.50-L evacuated flask and heated until it decomposes, as shown below: \[ \text{NH}_4\text{Cl (s)} \rightarrow \text{NH}_3 \text{ (g)} + \text{HCl (g)} \] After the reaction has completed, the total pressure in the flask is measured as 4.40 atm at 202°C. Based on this information, what percent of the ammonium chloride decomposed? --- **Problem 13:** A mixture of gases containing 12.45 g of H₂, 60.67 g of N₂, and 2.38 g of NH₃ are placed in a 10.00 L container at 90°C. What is the total pressure (in atm) and partial pressure of each component in the gas mixture? --- **Problem 14:** Which has a higher average speed, H₂ at 150 K or He at 375°C?
Transcribed Image Text:**Problem 12:** A 4.85-g sample of solid ammonium chloride is placed in a 1.50-L evacuated flask and heated until it decomposes, as shown below: \[ \text{NH}_4\text{Cl (s)} \rightarrow \text{NH}_3 \text{ (g)} + \text{HCl (g)} \] After the reaction has completed, the total pressure in the flask is measured as 4.40 atm at 202°C. Based on this information, what percent of the ammonium chloride decomposed? --- **Problem 13:** A mixture of gases containing 12.45 g of H₂, 60.67 g of N₂, and 2.38 g of NH₃ are placed in a 10.00 L container at 90°C. What is the total pressure (in atm) and partial pressure of each component in the gas mixture? --- **Problem 14:** Which has a higher average speed, H₂ at 150 K or He at 375°C?
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