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August 27, 2014

Homework Help: chem

Posted by Braydon on Monday, February 7, 2011 at 12:22am.

combustion analysis of a 285.7 mg sample of a hydrocarbon produces 880.8 mg of CO2 ans 405.7 mg of H2O.

What is the empirical formula of the compound?
a rough measurement of the molecular weight indicates it is a little over 100mg/mol. what is the molecular formula of the compound?

I don't know how to get the answer.

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