General Gas Laws and Boyle's Law Practice Problems 1. Convert each of the following to pressure readings expressed in mm Hg: a. 1.25 atm c. 4.75 x 104 atm b. 2.48 x 10-3atm d. 7.60 x 106 atm 2. Convert each of the following to the unit specified: a. 125 mm Hg into torr b. 3.20 atm into Pa (there are 1000 Pa in one kPa) c. 5.38 kPa into mm Hg 3. Convert each of the following Celsius temperatures to Kelvin temperatures: a. 0° C c. -50° C b. 27° C d. -273° C 4. Convert each of the following Kelvin temperatures to Celsius temperatures: a. 273 K c. 100.0 K e. 0 K b. 350 K d. 20 K 5. Use Boyle's Law to solve for the missing value in each of the following: a. P1 = 350 mm Hg, V1 = 200 mL, P2 = 700 mm Hg b. P1 = 0.75 atm, V2 = 435 mL, P2 = 0.48 atm c. V1 = 2.4 x 105 L, P2 = 180 torr, V2 = 1.8 x 103 L 6. If the pressure exerted on a 240mL sample of hydrogen gas at a constant temperature is increased from 325 mm Hg to 550 mm Hg, what will be the final volume of the sample? 7. A flask containing 155 cm3 of hydrogen was collected under a pressure of 22.5 kPa. What pressure would have been required in order for the volume of the gas to have been 90.0 cm3 at constant temperature? General Gas Laws and Boyle's Law Practice Problems 8. A gas has a volume of 450 mL at standard pressure. If the temperature is held constant, what volume would the gas occupy if the pressure were a. doubled. b. reduced to one-fourth of its original value. 9. If a sample of oxygen that occupies 1.00 x 106 mL at 575 mm Hg is subjected to a pressure of 1.25 what will be the final volume of the sample if the temperature is held constant?