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September 16, 2014

Homework Help: chemistry

Posted by jhong on Tuesday, March 13, 2012 at 6:39pm.

A 12.0g sample of carbohydrate contain 4.50g of carbon, 3.25g of oxygen, and some hydrogen. Determine the percent by mass of hydrogen in your product.

Find the empirical formula for a compound that consists of aluminum and chlorine in which the aluminum is 20.2 % by mass.

. A sample contains 71.65% CL, 24.27% C and 4.07% H. the molecular weight is known to be 98.96 g/mol. What are the empirical and molecular formulas?

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