(Answered) 1 an unknown volume of gas has a pressure of 365 mm hg and

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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 45^oC, and an unknown pressure has its volume increased to 34 liters and its temperature decreased to 35^oC. 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?

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