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1. What is the molar mass of a gas if 0.252 g of the gas occupies...

1. What is the molar mass of a gas if 0.252 g of the gas occupies a volume of 125 mL at a temperature of 123°C and a pressure of 778 torr?

2. A mixture of 0.229 g of H2, 1.08 g of N2, and 0.836 g of Ar is stored in a closed container at STP. Find the volume (in L) of the container, assuming that the gases exhibit ideal behavior.

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