Homework Help: math

Posted by shana on Thursday, November 8, 2012 at 11:15pm.

What is one mole of H2O composed of?
A. 2 hydrogen atoms and 1 oxygen atom
B. 2 × (6.02 × 1023) hydrogen atoms and 6.02 ×1023 oxygen atoms
C. 3 atoms of water and 2 oxygen molecules
D. one half of a molecule of peroxide

I say A

math - Steve, Friday, November 9, 2012 at 3:14am
a mole is 6.02*10^23 molecules.

A is one molecule
B is one mole

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