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Posted by on Friday, April 22, 2011 at 12:19pm.

quarters are 91.67% mass/mass copper and 8.33% mass/mass nickel. if the average quarter weighs 5.67 grams, how many atoms of nickel are in a quarter?

  • chemistry - , Friday, April 22, 2011 at 6:41pm

    grams Ni = 5.67g x 0.0833 = ??
    moles Ni = grams/molar mass.

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