November 26, 2015

Homework Help: chemistry

Posted by Kathy R on Friday, February 4, 2011 at 1:33pm.

If a sample of a compound of carbon and oxygen contains 3.00g of carbon and 8.00g of oxygen, what is the mass percent of carbon in the compound?
A. 27.3%
B. 25.0%
C. 37.5%
D. 3.67%
E. 2.67%

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