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8-3. What is the molar volume of oxygen gas at 65.00 °C and 2342 torr? You have a sample of an unknown gaseous compound which has a density of 8.51 g/L at 55.0 °C and 88.6 kPa. What is the molar mass of this compound? 8-4. A sample of carbon dioxide gas in a rigid container has a pressure of 11.4 psi at 75 °C. What will the new temperature be (in °C) if the pressure is changed to 28.2 psi? 8-5. Dry ice is solid carbon dioxide. It sublimes readily. Suppose there is a 25.0 liter glass bottle containing nitrogen at 382 mm Hg and 31 °C. A 31.8 gram sample of dry ice is placed into this bottle without any nitrogen escaping. There is no chemical reaction and the temperature remains constant. After the entire sample of dry ice has sublimed: 8-6. What is the partial pressure of the CO, gas in the bottle? а. b. What is the total pressure in the bottle? C. What is the mole fraction of CO, gas in the bottle? 8-7. Suppose a 185 gram sample of hydrogen reacts as follows: 2 NO2 (g) + 7 H2 (g) → 2 NH3 (g) + 4 H2O(g) Both products are collected together in a 325 liter vessel at 512 K. How many moles of ammonia gas are produced? a. b. How many moles of water vapor are produced? C. What is the total pressure in the product collection vessel after the reaction is complete? 8-8. Suppose 175 grams of P4 is added to 8.00 liters of a 2.65 M HCI solution and the following reaction takes place: CL(a)

8-3. What is the molar volume of oxygen gas at 65.00 °C and 2342 torr? You have a sample of an unknown gaseous compound which has a density of 8.51 g/L at 55.0 °C and 88.6 kPa. What is the molar mass of this compound? 8-4. A sample of carbon dioxide gas in a rigid container has a pressure of 11.4 psi at 75 °C. What will the new temperature be (in °C) if the pressure is changed to 28.2 psi? 8-5. Dry ice is solid carbon dioxide. It sublimes readily. Suppose there is a 25.0 liter glass bottle containing nitrogen at 382 mm Hg and 31 °C. A 31.8 gram sample of dry ice is placed into this bottle without any nitrogen escaping. There is no chemical reaction and the temperature remains constant. After the entire sample of dry ice has sublimed: 8-6. What is the partial pressure of the CO, gas in the bottle? а. b. What is the total pressure in the bottle? C. What is the mole fraction of CO, gas in the bottle? 8-7. Suppose a 185 gram sample of hydrogen reacts as follows: 2 NO2 (g) + 7 H2 (g) → 2 NH3 (g) + 4 H2O(g) Both products are collected together in a 325 liter vessel at 512 K. How many moles of ammonia gas are produced? a. b. How many moles of water vapor are produced? C. What is the total pressure in the product collection vessel after the reaction is complete? 8-8. Suppose 175 grams of P4 is added to 8.00 liters of a 2.65 M HCI solution and the following reaction takes place: CL(a)

Chemistry: Principles and Practice
Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter6: The Gaseous State
Section: Chapter Questions
Problem 6.10QE
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What is the molar volume of oxygen gas at 65.00 °C and 2342 torr? 8-3. You have a sample of an unknown gaseous compound which has a density of 8.51 g/L at 55.0 °C and 88.6 kPa. What is the molar mass of this compound? 8-4. A sample of carbon dioxide gas in a rigid container has a pressure of 11.4 psi at 75 °C. What will the new temperature be (in °C) if the pressure is changed to 28.2 psi? 8-5. Dry ice is solid carbon dioxide. It sublimes readily. Suppose there is a 25.0 liter glass bottle containing nitrogen at 382 mm Hg and 31 °C. A 31.8 gram sample of dry ice is placed into this bottle without any nitrogen escaping. There is no chemical reaction and the temperature remains constant. After the entire sample of dry ice has sublimed: 8-6. а. What is the partial pressure of the CO, gas in the bottle? b. What is the total pressure in the bottle? С. What is the mole fraction of CO, gas in the bottle? 8-7. Suppose a 185 gram sample of hydrogen reacts as follows: 2 NO2 (g) + 7 H2 (g) → 2 NH3 (g) + 4 H2O(g) Both products are collected together in a 325 liter vessel at 512 K. a. How many moles of ammonia gas are produced? b. How many moles of water vapor are produced? С. What is the total pressure in the product collection vessel after the reaction is complete? Suppose 175 grams of P4 is added to 8.00 liters of a 2.65 M HCl solution and the following reaction takes place: 8-8. Pa(s) + 12 HCl(aq) → 4 PH3(g) + 6 Cl2(g) a. Which reactant is the limiting reactant? b. Briefly explain how you know which reactant is limiting. Be specific. Use complete sentences. С. How many grams of P4 will be left over at the end? d. What is the final molarity of HCI? If the two gaseous products are collected separately, then what volume of chlorine gas is collected at STP? е.
Transcribed Image Text:What is the molar volume of oxygen gas at 65.00 °C and 2342 torr? 8-3. You have a sample of an unknown gaseous compound which has a density of 8.51 g/L at 55.0 °C and 88.6 kPa. What is the molar mass of this compound? 8-4. A sample of carbon dioxide gas in a rigid container has a pressure of 11.4 psi at 75 °C. What will the new temperature be (in °C) if the pressure is changed to 28.2 psi? 8-5. Dry ice is solid carbon dioxide. It sublimes readily. Suppose there is a 25.0 liter glass bottle containing nitrogen at 382 mm Hg and 31 °C. A 31.8 gram sample of dry ice is placed into this bottle without any nitrogen escaping. There is no chemical reaction and the temperature remains constant. After the entire sample of dry ice has sublimed: 8-6. а. What is the partial pressure of the CO, gas in the bottle? b. What is the total pressure in the bottle? С. What is the mole fraction of CO, gas in the bottle? 8-7. Suppose a 185 gram sample of hydrogen reacts as follows: 2 NO2 (g) + 7 H2 (g) → 2 NH3 (g) + 4 H2O(g) Both products are collected together in a 325 liter vessel at 512 K. a. How many moles of ammonia gas are produced? b. How many moles of water vapor are produced? С. What is the total pressure in the product collection vessel after the reaction is complete? Suppose 175 grams of P4 is added to 8.00 liters of a 2.65 M HCl solution and the following reaction takes place: 8-8. Pa(s) + 12 HCl(aq) → 4 PH3(g) + 6 Cl2(g) a. Which reactant is the limiting reactant? b. Briefly explain how you know which reactant is limiting. Be specific. Use complete sentences. С. How many grams of P4 will be left over at the end? d. What is the final molarity of HCI? If the two gaseous products are collected separately, then what volume of chlorine gas is collected at STP? е.
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