1. An unknown volume of gas has a pressure of 365 mm Hg and a temperature of 52oC. If the pressure is raised to 1.2 atm, the temperature decreased to 47oC, and the final volume measured to be 4.8×103 mL, what was the initial volume of the gas in liters?
2. A gas that has a volume of 28 liters, a temperature of 45oC, and an unknown pressure has its volume increased to 34 liters and its temperature decreased to 35oC. If you measure the pressure after the change to be 2.0 atm, what was the original pressure of the gas?
3. A glass jar containing 0.27 mol of Nitrogen, with a leaky lid is heated from room temperature (22 ºC) to 150 ºC. How many moles of Nitrogen remain in the jar? How many grams?