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10-04-2024
Chemistry

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1. The density of a gas at a pressure of 1.34 atm and a temperature of 303 K is found to be 1.77 g/L. What is the molar mass of this gas? 2. A helium-filled weather balloon has a volume of 7240 ft³. How many grams of heliumwould be required to inflate this balloon to a pressure of 745 torr at 21°C? (1 ft³ =28.3 L)

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