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April 20, 2014

Homework Help: Chemistry

Posted by Kasey on Sunday, July 1, 2012 at 6:19pm.

To identify a diatomic gas (X2), a researcher carried out the following experiment: She weighed an empty 2.7L bulb, then filled it with the gas at 1.30 atm and 30.0 C and weighed it again. The difference in mass was 3.9 g. Identify the gas.
I used Pv=nRT to get the moles, but it keeps saying my answer is wrong. I don't know how to incorporate the difference in mass.

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