molar mass = (grams RT) / PV
STP = 1 atm of pressure and 273 K for temperature
R = 0.0821 atm L/mol K
molar mass = (1.7 g 0.0821 atm L/mol K 273 K ) / (1 atm 0.5 L)
molar mass = 76.20 g/mol
5.60 g of an unknown gas at STP fills a 500. mL flask. What is the molar mass of the gas?
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A 9.98 g of an unknown gas occupies 5.60 L at STP. What is the density and identity of this gas?
A gas mixture is made by combining 5.2 g each of Ar, Ne, and an unknown diatomic gas. At STP, the mixture occupies a volume of 12.85 L. What is the molar mass of the unknown gas? molar mass: g/mol Identify the unknown gas. Oo, Och, OF, OH, ON,
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