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Thermodynamics
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OpenStudy (anonymous):
A sample of magnesium had the following isotopic composition: 24Mg, 78.60%; 25Mg, 10.11%; 26Mg, 11.29%. Calculate the relative atomic mass, Ar, of magnesium in the sample.
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OpenStudy (anoop27):
Relative atomic mass = (24*78.60 +25*10.11 * 26*11.29)/100
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