What do moles have to do with chemistry? No wonder why the American education system is rated around 35th in the world. Of course I am assuming that you are in the states.
English
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He's talking about this mole http://en.m.wikipedia.org/wiki/Mole_(unit)
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Slightly clever but utterly irrelevant method to teach science. Thanks for the info I'm a victim of the American eduction system.