1. A tank contains helium for filling balloons. It holds 6.75 L of He at 42.2 atm and 22.9 °C. What would be the volume of this helium at 2.39 atm and 13.2 °C?
2. The volume of a sample of ethane, C2H6, is 2.38 L at 452 torr and 30 °C. What volume will it occupy at standard temperature and pressure (STP)?
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