Virginia SOL - Chemistry: Test Prep & Practice  /  Science Courses

Test Prep Plan - Take a practice test

Take this practice test to check your existing knowledge of the course material. We'll review your answers and create a Test Prep Plan for you based on your results.
How Test Prep Plans work
1
Answer 50 questions
Test your existing knowledge.
2
View your test results
Based on your results, we'll create a customized Test Prep Plan just for you!
3
Study smarter
Study more effectively: skip concepts you already know and focus on what you still need to learn.

Virginia SOL - Chemistry: Gas Laws & Phase Changes 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!

Page 1

Question 1 1. To use Boyle's Law, which of the following needs to remain constant?

Question 2 2. MgCl2 and NaCl are both salts that are used to treat roads. Which salt will have the greatest effect on the freezing point and why?

Question 3 3. Which of the following is a unit we could use to measure volume?

Question 4 4. At constant temperature, what happens to the pressure when the volume is doubled?

Question 5 5. To use Charles' Law, which of the following needs to remain constant?

Page 2

Question 6 6. To measure freezing point depression the following equation is used Delta T = - i Kf m. What is the m in this equation?

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

Question 8 8. One-third of a gaseous mixture is nitrogen and 2/3 of the gas is helium. The total pressure in the container is 3 atmospheres. What is the partial pressure of the nitrogen?

Question 9 9. If someone is measuring pressure, they might use any of the following units EXCEPT _____.

Question 10 10. 1000 mL of a gas is cooled from 500 K to 250 K. What is its final volume?

Page 3

Question 11 11. Why are there plateaus on a heating curve?

Question 12 12. Which units of pressure are needed if you are going to use 0.0821 as your ideal gas constant?

Question 13 13. Which of the following variables is NOT included in the ideal gas equation?

Question 14 14. How does adding energy to a solid change the substance?

Question 15 15. The total energy contained within a substance is termed ...

Page 4

Question 16 16. Calculate how much heat energy (q) is needed to melt 10 grams of gold at its melting point. Note: gold has a heat of fusion of 15.4 cal/g.

Question 17 17. Which of the following substances has the highest specific heat capacity?

Question 18 18. Which of the following is an example of a colligative property?

Question 19 19. A sealed vessel contains 50% oxygen, 10% carbon dioxide, and 40% nitrogen gas. The total pressure of the gas mixture is 5 atmospheres. What is the partial pressure of the carbon dioxide?

Question 20 20. Water takes longer to boil than alcohol because water has ...

Page 5

Question 21 21. What units do scientists usually measure mass in?

Question 22 22. If two objects have the same mass, but object A is much bigger than object B, what can you say about the particles in the two objects?

Question 23 23. Heat and temperature are _____.

Question 24 24. If you add a gas to a container with a fixed volume, what happens to the amount of pressure in that container?

Question 25 25. 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?

Page 6

Question 26 26. 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 27 27. What is the freezing point of a solution made by dissolving 100.0 g of sucrose (C12H22O11) into 950 g of water? Kf of water = 1.86 C/m and the molar mass of sucrose = 342.2 g/mol

Question 28 28. The average kinetic energy of a substance is termed ...

Question 29 29. 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?

Question 30 30. What is the osmotic pressure formula?

Virginia SOL - Chemistry: Gas Laws & Phase Changes 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!

Support