What is the mass in grams occupied by 3.04 L Ar gas at STP? Note that volume of 1.0 mol of Ar gas at STP = 22.4 L.Use molar mass of 39.95 g/mol for Ar. Report answer to 3 sig figs.
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The volume of 1 mole of any gas is called its molar volume and is equal to 22.4 L at standard temperature and pressure. Molar volume allows conversions to be made between moles and volume of gases at STP. Gas density can be calculated from the molar mass and molar volume.
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