Homework Help: chemistry

Posted by kris on Thursday, July 26, 2012 at 7:56am.

A sample of gas with a mass of 1.62 g occupies a volume of 941 mL at a pressure of 748 torr and a temperature of 20.0 C. What is the molar mass of the gas?

chemistry - DrBob222, Thursday, July 26, 2012 at 2:59pm
Use PV = nRT and solve for n = number of mols. Then n = grams/molar mass and solve for molar mass.
Remember T must be in kelvin, volume in L, and P in atmospheres.

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