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OpenStudy (beaubrun):
What is the atomic weight of a hypothetical element consisting of two isotopes, one with a mass of 62.2 u which is 44% abundant, and the other with a mass of 64.0 u?
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OpenStudy (anonymous):
m = x1m1 + x2m2 m = (0,44*62,2) + (0,56*64)
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