Thursday
November 27, 2014

Homework Help: Physics

Posted by James on Saturday, April 19, 2008 at 1:19pm.

A runner weighs 560 N (about 130 lb), and 74% of this weight is water.

(a) How many moles of water are in the runner's body?
moles

(b) How many water molecules (H2O) are there?
molecules

I dont' unstand what to do here. I know have to fine mole per h2o

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