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September 1, 2014

Homework Help: Chemistry

Posted by Fai on Saturday, August 18, 2012 at 10:20pm.

What is the mass/ vol% ethanol in an ethanol water solution with density of 0.875g/ml and containing 65% ethanol by volume? The density of pure ethanol is 0.789g/ml?

My calculation
0.875g/ml x 1000ml x 0.65/ 46.06 = 12.34m
12.34/0.789g = 15.6g I am not sure answer. Pls help

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