1. Calculate the mole fraction of gas A, which has a pressure of 110. torr, in the air, which has a pressure of 800. torr. 0.138 0.427 0.121 4.23 13.8 2. The temperature of an ideal gas in a 5.0 L container was raised in temperature from 20.oC to 80.oC. If the initial pressure of the gas was 1200 mmHg, what was the final pressure of the gas? 1100 mmHg 1200 mmHg 1300 mmHg 1400 mmHg 1500 mmHg 3. A 5.0 L flask contains 0.50 grams of Fl2 at 27oC. What is the pressure in the flask? 1 atm 0.0058 atm 0.065 atm 2.46 atm 4.0 atm 4. In a certain container, you have 0.2 moles O2 and 0.3 moles N2. What is the partial pressure of the oxygen at STP? 0.2 atm 0.3 atm 0.4 atm 0.5 atm 0.6 atm 5. Body temperature is around 308oK. What volume of air at 298oK must a person with a lung capacity of 2.5 L breath in to fill the lungs? 2.58 L 0.00811 L 2.42 L 4.26 L None of the above Name: E-mail: Last 15 Challengers
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