AP Chemistry: Gases: Homework Help 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. 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 2 2. If a gas with a pressure of 6 atmospheres is cooled from 500 K to 250 K, then what is its final pressure?

Question 3 3. To use Charles' Law, which of the following needs to remain constant?

Question 4 4. 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?

Question 5 5. A 4 L sample of gas is heated from 20 K to 200 K. What will its final volume be?

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Question 6 6. Which of the following is TRUE about most gases?

Question 7 7. To use Boyle's Law, which of the following needs to remain constant?

Question 8 8. 1000 mL of a gas at 15 atm is compressed to 500 mL. What is its new pressure?

Question 9 9. What advantage does the van der Waals equation give us over the ideal gas law?

Question 10 10. A 4 L sample of gas is heated from 20 K to 200 K. Its initial pressure was 60 torr. What is its final pressure?

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Question 11 11. If someone is measuring pressure, they might use any of the following units EXCEPT _____.

Question 12 12. Why does the probability curve become narrower when gas particles are more massive?

Question 13 13. 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 14 14. How would you rearrange the ideal gas equation to calculate the pressure of a gas?

Question 15 15. What does it mean when a collision is elastic?

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Question 16 16. What does the Maxwell-Boltzmann curve tell us?

Question 17 17. If you want to find the volume of a gas using the ideal gas law, which values do you need to know?

Question 18 18. In the ideal gas equation, what does R represent?

Question 19 19. Gas particles have random _____.

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

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Question 21 21. What volume is occupied by 15.0 moles of carbon dioxide gas at standard temperature and pressure?

Question 22 22. 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?

Question 23 23. At constant temperature, what happens to the pressure when the volume is doubled?

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. 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?

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Question 26 26. In the van der Waals equation, what does a represent?

Question 27 27. The ideal gas constant, R, can be found using which of the following equations?

Question 28 28. Which of the following variables is NOT included in the ideal gas equation?

Question 29 29. If you add a gas to a container with a fixed volume, what happens to the amount of pressure in that container?

Question 30 30. Which of the following statements best represents Graham's Law?

AP Chemistry: Gases: Homework Help 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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