Homework Help: science

Posted by anonymous on Tuesday, August 28, 2012 at 3:06pm.

Given that 6.20 x 10^23 ethanol molecules have a mass of 46.04g calculate the number of ethanol molecules in a film of ethanol that is 3.08 mm by 0.0015 mm. Assume the density of ethanol is 0.790 g/mL

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