Isotope Question?

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An element consists of two isotopes of mass 36.1891 amu and 44.23836 amu. If the average atomic mass of the element is 39.204 amu. Calculate the percent abundance (percent of each isotope that is contributed to making the mass of the overall element) of the first isotope.

2006-10-01 07:32:11 · 1 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry

1 answers

x*36.1891+(1-x)44.23836=39.204
-8.04926x=-5.03436
x=.6254
Therefore, 62.54% of this element is the 36.1891 type, and 37.46% of this element is the 44.23836 type.

2006-10-01 07:46:55 · answer #1 · answered by bruinfan 7 · 0⤊ 0⤋