Ap Chem Ch 6 Gas Laws

​Converting between Pressure Units

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The pressure in Denver, Colorado (elevation​ 5280 ft), averages about 24.9 inHg. Convert this pressure to each indicated unit.

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a. Atm​

b. mm Hg

c. psi

d. Pa​

​A sample of gas has an initial volume of 5.6 L at a pressure of 735 mm Hg. If the volume of the gas is increased to 9.4 L, what is the pressure?

​A 48.3 mL sample of gas in a cylinder is warmed from 22^o C to 87^o C. What is its volume at the final temperature? (watch labels)

​A balloon contains 0.158 mol of gas and has a volume of 2.46 L. If an additional 0.113 mol of gas is added to the balloon (at the same temperature and pressure), what is its final volume?

​What volume is occupied by 0.118 mol of helium gas at a pressure of 0.97 atm and a temperature of 305 K? Would the volume be different if the gas was argon (under the same conditions)?

​What is the pressure in a 10.0 L cylinder filled with 0.448 mol of nitrogen gas at a temperature of 315 K?

​A automobile tire has a maximum rating of 38.0 psi (gauge pressure). The tire is inflated (while cold) to a volume of 11.8 L and a gauge pressure of 36.0 psi at a temperature of 12.0 ^o C. On a hot day, the tire warms to 65.0 ^o C, and its volume expands to 12.2 L. Does the pressure in the tire exceed its maximum rating? (Note: The gauge pressure is the difference between the total pressure and atmospheric pressure. In this case, assume that atmospheric pressure is 14.7 psi)