Homework Help: CHEMISTRY

Posted by John on Saturday, May 12, 2012 at 4:55pm.

A mixture of Xe, Kr, and Ar has a total pressure of 6.7 atm. What is the mole fraction of Kr if the partial pressures of XE and Ar are 1.6 atm and 2.8 atm?

Did anyone get .343 ?

CHEMISTRY - bobpursley, Saturday, May 12, 2012 at 4:57pm
partial pressure is directly related to mole fraction.

partial pressure of Kr = 6.7-1.6-2.8

molefractionKr=partialpressureKr/6.7atm
CHEMISTRY - John, Saturday, May 12, 2012 at 5:02pm
Thats what I did! THANK YOU!

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