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May 24, 2015

Homework Help: chemistry

Posted by bertie on Monday, February 5, 2007 at 3:33pm.

Hi,

how many moles does 0.225g of oxygen atoms represent?

If 1 mole of oxygen atoms represents 16.0g?

Thanks

mols = grams/molar mass.

thot so.

Thanks for confirming ;)

This is right for oxygen atoms, however, oxygen in the atmosphere is O2, and we normally think of a mole of O2 molecules. Make certain which you need.

thanks

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