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November 28, 2014

Homework Help: Physics

Posted by ana on Wednesday, November 18, 2009 at 9:32pm.

How many grams of water (H_2O) have the same number of oxygen atoms as 1.0 (mol} of oxygen gas?

atomic mass of H is 1 and O is 16,
so H2O has a molar mass of 18.
Oxygen gas is O2, with a molar mass of 32. So 1.0 mole of oxygen gas has 6.02x10^23 molecules = 12.04x10^23 oxygen atoms. how do i go further?

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