Chemistry Help?

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Calculate the density, g/cm3, of propane C3H8 at 107.0C and 868 torr.

I am having trouble with this chemistry problem and if anyone could help me out that would be great. Please don't just give the answer, explain why. Thanks!

2007-10-30 07:51:17 · 1 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry

1 answers

Atomic weights: C=12 H=1 C3H8=44 Let propane be called P
107C=290K
The volume of 1 mole of gas at STP is 22.4L

44gP/22.4LP x 273K/290K x 868torr/760torr x 1LP/1000cucmP = 2.11 x 10^-3 g/cucm

2007-10-30 08:00:49 · answer #1 · answered by steve_geo1 7 · 0⤊ 0⤋