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An element consists of two isotopes of mass 36.4681 and 43.59612 amu. If the average atomic mass of the element is 40.741 amu, calculate the percent abundance of the first isotope.

  • Chemistry -

    avg*100= Percent1(weight1) + (100-Percent1)weight2

    40.741*100=P*364681 + (100-P)43.59612

    solve for P.

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