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Molar mass and density

In most general chemistry courses, students calculate the molar mass (MM) of a volatile liquid using the ideal gas law (PV = nRT) in the following form: MM = (mass of vapor*R*boiling point in Kelvins)/(pressure in atmospheres*flask volume). If R = 0.0821 liter-atmospheres/mole-degree K, the flask volume is 550 ml, the pressure is 775 torr., calculate the following: 1. The density of the vapor for CH2Cl2 at 70C 2. The molar mass of CCl4 if the mass of vapor in the flask is 2.88 grams at 90C

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In most general chemistry courses, students calculate the molar mass (MM) of a volatile liquid using the ideal gas law (PV = nRT) in the following form: MM = (mass of vapor*R*boiling point ...

Solution Summary

It shows how calculate the density of the vapor for CH2Cl2.

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