Thursday
October 2, 2014

Homework Help: Chemisty!

Posted by Rachel on Monday, March 14, 2011 at 6:46pm.

a flask with a volume of 267.5 mL contains a few milliliters of a volatile hydrocarbon. after vaporizing the gas at 100 degrees C, the flask is weighed and found to contain 0.728 grams of hydrocarbon vapor at 755 mmHg. a seperate combustion analysis experiment revealed that the empirical formula osf the hydrocarbon was CH2. What is the molecular formula?

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