AP Chemistry: Gases: Tutoring Solution Chapter Exam

Exam Instructions:

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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Question 1 1. 1000 mL of a gas at 15 atm is compressed to 500 mL. What is its new pressure?

Question 2 2. If you know the temperature, volume, and pressure of a gas, how would you rearrange the ideal gas equation to find the number of moles?

Question 3 3. If you want to find the volume of a gas using the ideal gas law, which values do you need to know?

Question 4 4. If carbon dioxide molecules effuse at an average rate of 5 mol/s, at what rate would diatomic hydrogen molecules effuse in the exact same conditions?

Question 5 5. Which of the following is TRUE about most gases?

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Question 6 6. Which of the following is TRUE about ideal gas particles?

Question 7 7. At constant pressure, what happens to the volume of a gas when the absolute temperature doubles?

Question 8 8. What advantage does the van der Waals equation give us over the ideal gas law?

Question 9 9. 1000 mL of a gas is cooled from 500 K to 250 K. What is its final volume?

Question 10 10. A balloon has an initial volume of 150 mL at 25 degrees Celsius. If the temperature is increased to 75 degrees Celsius, what is the final volume?

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Question 11 11. A 4 L sample of gas is heated from 20 K to 200 K. What will its final volume be?

Question 12 12. A container holds a mixture of two different gases. The oxygen in a container exerts 80 mmHg of pressure on the inside of the container. The total pressure inside the container is 120 mmHg. What is the pressure of the other gas in the container?

Question 13 13. According to the kinetic molecular theory, temperature is directly proportional to _____.

Question 14 14. Which units of pressure are needed if you are going to use 0.0821 as your ideal gas constant?

Question 15 15. Oxygen is collected in a test tube over 30 degree Celsius water. The vapor pressure of the water at that temperature is about 32 mmHg. If the atmospheric pressure is 640 mmHg, then what percentage of the gas in the test tube is oxygen?

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Question 16 16. Why can't all of the gas particles in a container have very high or very low speeds?

Question 17 17. A sample of hydrogen has a volume of 25 L under a pressure of 5 atm. What will the pressure of this gas be if the volume were decreased to 5 L?

Question 18 18. Mark has unknowingly driven over a very large nail when exiting his work parking lot. He has a long commute home, and by the time he arrives he will have a flat tire. The air that is slowly escaping from the hole in his tire is an example of _____.

Question 19 19. Why would a scientist have difficulty observing the behavior of an ideal gas?

Question 20 20. Standard temperature and standard pressure refer to:

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Question 21 21. A bag of chips has a volume of 2.0 L at 760 torr of pressure. What is its volume in an airplane flying at a high altitude with a pressure of 550 torr?

Question 22 22. Dana has placed a few drops of food coloring in a mixture of water and vinegar to dye hard-boiled eggs with her daughter in preparation for Easter. The food coloring changing the color of the water is an example of _____.

Question 23 23. If a gas with a pressure of 6 atmospheres is cooled from 500 K to 250 K, then what is its final pressure?

Question 24 24. Assuming the volume is held constant, what happens to the pressure of a gas when the absolute temperature doubles?

Question 25 25. As water heats up from 280 K to 310 K, the average kinetic energy of its molecules will:

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Question 26 26. Which of the following actions would cause an individual to experience lower pressure as measured in Atmospheres?

Question 27 27. An expandable container is holding 0.75 moles of argon with a volume of 5.0 L. Assuming the temperature and pressure are held constant, how many moles of argon would be needed to increase the volume to 7.0 L?

Question 28 28. To use Boyle's Law, which of the following needs to remain constant?

Question 29 29. How would you rearrange the ideal gas equation to calculate the pressure of a gas?

Question 30 30. A gas is collected by water displacement at 25 degrees Celsius. The vapor pressure of water at that temperature is 24 mmHg. If the atmospheric pressure is 800 mmHg, then what is the pressure of the dry gas you collected?

AP Chemistry: Gases: Tutoring Solution Chapter Exam Instructions

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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