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OpenStudy (anonymous):
What is the molecular mass (in g/mol) of 5.4 g of a gas at 1.8 atm and 4.3 oC if the gas occupies a 2.1 L vessel?
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OpenStudy (gebooors):
Use equation pV = nRT and solve amount of substance n. Then you can solve molar mass M using n= m/M Which you can convert M = m/n.
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