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Gases Review

Gases Review. Pressure Conversions. 525.3 kPa = ________ atm. 0.98 atm = _____________mmHg. 268.4 kPa = __________mmHg. 1.40 atm = ______________ kPa. Gas Laws.

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Gases Review

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  1. Gases Review

  2. Pressure Conversions • 525.3 kPa = ________atm

  3. 0.98 atm = _____________mmHg

  4. 268.4 kPa = __________mmHg

  5. 1.40 atm = ______________kPa

  6. Gas Laws • A 7.0 liter balloon at 22.0 °C contains hydrogen gas. If the balloon is carried outside to where the temperature is -3.0°C, what volume will the balloon occupy?

  7. Nitrogen (80.0 kPa), oxygen (21.0 kPa), carbon dioxide (0.03 kPa), and water vapor (2.0 kPa) are the usual atmospheric components. What is the total atmospheric pressure in kPa?

  8. A steel container with a volume of 20.0 L is filled with nitrogen gas to a final pressure of 200.0 atm at 27°C. Calculate the moles of nitrogen gas in the container.

  9. A deep underground cavern contains 2.24 x 106 liters of methane gas at a pressure of 1500.0 kPa and a temperature of 42.0°C. How many moles of methane does this cavern contain? • How many grams of methane (CH4) is this?

  10. Blast furnaces give off many unpleasant and unhealthy gases. If the total pressure is 0.99 atm, the partial pressure of carbon dioxide is 0.05 atm, and the partial pressure of hydrogen sulfide is 2.03 kPa, what is the partial pressure of the remaining air?

  11. A 5.0 liter tank of oxygen gas is at a pressure of 3.0 atm. What volume of oxygen will be available if the oxygen is used at standard pressure? (hint: what is standard pressure?)

  12. Given the following equation: CuO (s) + H2 (g) → Cu (s) + H2O (g) How many moles of copper are produced when 5.60 L of hydrogen reacts at 0.98 atm and 24°C?

  13. The pressure of a gas changes from 120.0 kPa to 50.0 kPa. The volume changes from 45.0 L to 40.0 L. If the initial temperature is 81.0°, what is the final temperature in degrees Celsius?

  14. A container is filled with 4.5 moles of Helium and 3.0 moles of Argon. It the total pressure in the container is 4.0 atm, what is the partial pressure of Helium?

  15. CH4 (g) + 2 O2 (g) → CO2 (g) + H2O (l) If 45.0 L of methane (CH4) undergoes complete combustion at 730.0 mmHg and 20.0°C, how many grams of CO2 will form?

  16. If I have 2.5 moles of a gas at a pressure of 525.15 kPa and a volume of 11.3 L, what is the temperature?

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