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April 25, 2015

Homework Help: Chemistry

Posted by Nicole on Saturday, July 24, 2010 at 12:24am.

Listerine mouthwash has 21.6% ethyl alcohol by volume. What mass of ethanol is contained in 20.0 mL of mouthwash ?! ( the density of ethanol is 0.789 g/mL.)

how would yu do this problem ?!?!

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