1. White Board Races Ch. 11 Gas Laws Review Game

2. Question What is the temperature and pressure for STP?

3. Answer 273 K (0 o C) 1 atm (760 mmHg)

4. Question Draw the graph that relates pressure and volume for Boyle’s Law.

5. Answer

6. Question You have a temperature reading of 25 K. Convert this to Celsius.

7. Answer -248 o C

8. Question How many liters (L) does one mole of gas occupy at STP?

9. Answer 22.4 L

10. Question What unit of temperature do we have to use in gas law calculations?

11. Answer Kelvin

12. Question Is the air pressure on a rainy day higher or lower than the air pressure on a sunny day?

13. Answer Lower

14. Question A tank of helium gas at 1.5 atm is what pressure in mmHg?

15. Answer 1,140 mmHg

16. Question The volume of a gas with a pressure of 1.2 atm increases from 1.0 L to 4.0 L. What is the final pressure of the gas, assuming constant temperature?

17. Answer 0.3 atm

18. Question A gas sample in a closed, expandable container of initial volume 5.00 L was allowed to warm from 25 °C to 35 °C. What was its new volume?

19. Answer 5.17 L

20. Question A gas contained in a steel tank has a pressure of 1.5 atm at a temperature of 320 K. What will be the gas pressure when the temperature changes to 450 K?

21. Answer 2.1 atm

22. Question At 570. mmHg and 25 °C, a gas sample has a volume of 2270 mL. What is the final pressure (in mmHg) at a volume of 1250 mL and a temperature of 175 °C ?

23. Answer 1560 mmHg

24. Question What is the volume of 64.0 g of O 2 gas at STP?

25. Answer 44.8 L

26. Question A sample contains 8.0 g of oxygen with a volume of 5.0 L. What is the volume after 4.0 g of oxygen is added, if temperature and pressure do not change?

27. Answer 7.5 L

28. Question What is the density, in grams per liter, of hydrogen gas (H 2 ) at STP?

29. Answer 0.09 g/L

30. Question How many moles of chlorine gas (Cl 2 ) are in a 7.0 L tank if the gas has a pressure of 865 mmHg and a temperature of 24 o C?

31. Answer 0.327 mol

32. Question What is the volume, in L, of 1.20 g of carbon monoxide at 8 o C if it has a pressure of 724 mmHg?

33. Answer 1.04 L

34. Question What is the molar mass, in g/mol, of an unknown gas in a 1.5 L container if 0.488 g of the gas has a pressure of 0.0750 atm at 19 o C ?

35. Answer 104 g/mol

36. Question If 12.8 g of aluminum reacts with HCl, how many liters of H 2 would be formed at 715 mmHg and 19 o C? 2Al + 6HCl  3H 2 + 2AlCl 3

37. Answer 18.1 L of H 2

38. Question If a mixture has a total pressure of 1.09 atm and the partial pressure of the first gas is 73 mmHg, what is the partial pressure in mmHg of the second gas?

39. Answer 755 mmHg

40. Question A 456 mL sample of oxygen gas (O 2 ) is collected over water at a pressure of 744 mmHg and a temperature of 20 o C. How many grams of dry O 2 are collected if the vapor pressure of water is 18 mmHg?

41. Answer 0.579 g of O 2