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December 8, 2016

Homework Help: physics

Posted by Will on Sunday, April 27, 2008 at 11:53am.

An ideal gas at 18.5°C and a pressure of 1.54 105 Pa occupies a volume of 2.10 m3.
(a) How many moles of gas are present?
moles

(b) If the volume is raised to 5.30 m3 and the temperature raised to 31.0°C, what will be the pressure of the gas?
Pa


I used the formula pv = nRT
(1.54*10^5)(2.10m^3 = n(8.31)(18.5)
I did the the algebra and got 2103 moles, but that doesn't seem to be the answer. What am I doing wrong?

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