February 23, 2017

Homework Help: HELP

Posted by Anonymous on Thursday, July 18, 2013 at 1:17am.

A volume of 18.0 L contains a mixture of 0.250 mole N2 , 0.250 mole O2 , and an unknown quantity of He. The temperature of the mixture is 0 ∘C , and the total pressure is 1.00 atm . How many grams of helium are present in the gas mixture?

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