Tuesday
March 31, 2015

Homework Help: Physical Chemistry

Posted by Dia B on Wednesday, September 12, 2012 at 2:48pm.

What is the mass of air in a 250-mL Erlenmeyer flask (actual volume is 267
mL) at a typical laboratory pressure of 715 torr and a temperature of 21˚C?
Assume air to be an ideal gas having an average molar mass of 29.0 g/mol.

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