1. A mix of N2, O2, CO2 and argon gas is contained in a 40.0 L container. The total pressure is 1.80 atm. T = 25.0 degrees C. The partial pressure of O2 is 0.600 atm. How many grams of O2 are present? Assume ideal behavior. 2. A balloon containing N2 gas has volume 4.80 L at a temperature 32.0 oC. The temperature is changed to -28.0 oC while still at a constant pressure of 762 torr. What will be the balloonâs new volume? 3. What is the mole fraction of Argon in a mixture of Ar, Ne and N2 in a 2.70 L flask, when the partial pressures of the gases are: 0.215 atm Ar ; 0.582 atm Ne and 0.203 atm N2? Temperature is 25 degrees C.

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1. A mix of N2, O2, CO2 and argon gas is contained in a 40.0 L container. The total pressure is 1.80 atm. T = 25.0 degrees C. The partial pressure of O2 is 0.600 atm. How many grams of O2 are present? Assume ideal behavior. 2. A balloon containing N2 gas has volume 4.80 L at a temperature 32.0 oC. The temperature is changed to -28.0 oC while still at a constant pressure of 762 torr. What will be the balloonâs new volume? 3. What is the mole fraction of Argon in a mixture of Ar, Ne and N2 in a 2.70 L flask, when the partial pressures of the gases are: 0.215 atm Ar ; 0.582 atm Ne and 0.203 atm N2? Temperature is 25 degrees C.

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