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October 31, 2014

Homework Help: chemistry

Posted by timmy on Thursday, August 5, 2010 at 12:15am.

in a lab experiment to obtain the molar mass of a voltaile liquid, the following data is obtained:

volume of flask=225ml
mass of flask=77.834gms
mass of flask+gas=78.416gms
temperature=100 degrees celsius
pressure=714 torr

What is the molar mass of the liquid?

A)11.1 g/mol
B)22.6 g/mol
C)84.3 g/mol
D)99.2 g/mol

please help with working out this problem.

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