Friday
August 29, 2014

Homework Help: chemistry

Posted by Katie on Tuesday, March 1, 2011 at 8:23pm.

A 6.0 L flask contains a mixture of methane, argon and helium at 45 degrees C and 1.75 am. If the mole fractions of helium and argon are 0.25 and 0.35, respectively, how many molecules of methane are present?

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