Homework Help: math

Posted by shana on Thursday, November 8, 2012 at 11:28pm.

How is percent composition calculated?
A. Dividing the mass of each element in the compound by the total mass of the compound and then dividing by 100%
B. Dividing the mass of each element in the compound by the total mass of the compound and then multiplying by 100%
C. Dividing the total mass of the chemical compound by the mass of each component element and then multiplying by 100%
D. Multiplying the total mass of the chemical compound by the mass of each element in the compound and then dividing by 100%

I say D

math - Steve, Friday, November 9, 2012 at 3:11am
I think if you reconsider you will choose B.

You correctly worked the problem for C3H8 by doing B.

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