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Mole Concept

  1. Dec 5, 2009 #1
    How many Gold atoms are in Gold mass of 2.5g? 15 percent of the mass is pure Gold.
    So first i found 15 percent of the mass which i used to calculate the number of moles. Then i multiplied the moles by Avogadros number to give me the atoms. Anyone help
  2. jcsd
  3. Dec 5, 2009 #2


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    Staff: Mentor

    Not sure what kind of help you need - what you wrote sounds like a correct approach to the problem.

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