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Ch 14 ideal gas laws WS 4

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					Ch 14 WS 4 – Basic Level Ideal Gas Law Problems

Name______________________________________Class____________Date_______________

                        PV = nRT

       R = 8.314 kPa∙L                         R = 0.0821 atm∙L
                 mol∙K                                    mol∙K

1. Complete the table below using the ideal gas law to solve the problems. Remember: all units
must be consistent with the ideal gas constant you use!

             Pressure                Volume               Amount of gas           Temperature
 a.          3.5 atm                  5.00 L                         mol              303 K
 b.          65.0 psi                           L            75.0 g O2               23.8oC
 c.       740.0 mm Hg                25.0 mL                         mol             22.5oC
 d.                 atm              2500. L                 1000. mol               40.0oC
 e.          99.3 kPa                 5.00 L                 0.450 mol                      K



2. A student collects 425 mL of oxygen at a temperature of 24.0oC and a pressure of 0.899 atm.
How many moles of oxygen did the student collect?




3. What is the mass of chlorine gas that is in a 2.0 L tank with a pressure of 125 atm at 25oC?




4. What pressure in atmospheres will 1.36 kg of N2O exert when it is compressed in a 25.0 L
cylinder and is stored in an outdoor shed where the temperature can reach 59.0oC in the summer?
5. A large balloon contains 2.50 moles helium. What volume will the helium occupy at an
altitude of 10,000 meters, where the atmospheric pressure is 0.262 atm and the temperature is
-50.0oC?




6. How many moles of air are in a 15.0 L scuba tank with a pressure of 20,500 kPa and a
temperature of 31.0oC?




7. A propane tank has a volume of 35.0 L. How many moles of propane will it hold at a pressure
of 2,525 kPa and a temperature of 85.0oC?




8. What is the pressure (in kPa) of a 0.500 L aerosol can that contains 50.0 g N2 at 45.0oC?




9. What volume tank is required to store 4500. kg CH4 at a maximum temperature of 75.0oC and
a maximum pressure of 20.0 atm?




10. What pressure (in atm) will 5.00 moles hydrogen gas exert in a 2.0 L container at 22.8oC?

				
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