October 13, 2015

Homework Help: chemistry

Posted by Susan on Tuesday, April 1, 2014 at 3:17pm.

Unsure how to solve this without a formula... I think its combustion analysis?

CxHy + O2 --> CO2 + H20
CxHY has a MW=78g/mol. 100g of CxHy yields 338g CO2 and 138g of H2O. What is the formula CxHY (what are x and y)? Balance the reaction equation.

Any help at all is appreciated.

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