Wednesday
April 23, 2014

Homework Help: Chemistry

Posted by Thao on Monday, April 25, 2011 at 2:49pm.

Ideal gas law question

A 4.0 liter container has two gases inside, neon and argon. It is known that at 18 C, the total pressure of the combined gases is 0.850 atm. If it is known that there are 0.100 moles of neon in the container, how many moles of argon are in the container?

n= RT/PV
n= (0.0821 LxATM/KxMOL x 291K) / (0.850 ATM x 4.0 L

= 7.026 mol

I am stuck from here. I don't know how to isolate the 0.100 mols of Neon from the Argon. Initially I subtracted 0.100 mols from 7.026 mol but that is not correct.

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