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July 25, 2014

Homework Help: Chemistry 105

Posted by JULIE on Sunday, October 23, 2011 at 5:34pm.

A gas mixture with a total pressure of 745 mmHg contains each of the following gases at the indicated partial pressures: CO2, 257 mmHg; Ar, 123 mmHg; and O2, 160 mmHg. The mixture also contains helium gas.
What is the partial pressure of the helium gas?

What mass of helium gas is present in a 10.1-L sample of this mixture at 263 K?

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