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Only one isotope of element X occurs in nature

  1. Jul 16, 2009 #1
    only one isotope of element X occurs in nature. One atom of this isotope has a mass of 9.123x10-23g. What is the molar of the element X?
  2. jcsd
  3. Jul 18, 2009 #2
    Re: Isotopes

    You mean the molar mass? How many atoms are there in a mole?
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