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1) The volume of a gas at 21◦C and 0.27 atm is 62 mL. What volume will the same gas sample occupy at standard conditions? Answer in units of mL. 2) A 739 mL gas sample at STP is compressed to a volume of 244 mL, and the temperature is increased to 24◦C. What is the new pressure of the gas in Pa? 3) An aerosol can contain gases under a pressure of 4.5 atm at 24 ◦C. If the can is left on a hot sandy beach, the pressure of the gases increases to 4.66 atm. What is the Celsius temperature on the beach? 4) A sample of carbon dioxide gas occupies 564 mL at 0.868 atm and 6 ◦C. What will the pressure be at a volume of 877 mL and a temperature of 17 ◦C? 5) What pressure is required to reduce 62 mL of a gas at standard conditions to 16 mL at a temperature of 25◦C? 6) The volume of a gas is 26.1 mL at 22◦C and 0.926 atm. What will the volume be at 12◦C and 0.993 atm? 7) A gas has a volume of 1.94 L at −17◦C and 190 kPa. At what temperature would the gas occupy 1.03 L at 222 kPa?
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