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13 December, 07:05

A hypothetical element consists of 2 isotopes of masses 84.95 amu and 86.95 amu with abundance of 37.1% and 62.9% respectively. What is the average atomic mass?

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  1. 13 December, 09:31
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    The average atomic mass of the hypothetical element is the sum of the products of the isotopes and their percentage abundance. For this given,

    atm = (84.95 amu) (0.371) + (86.95 amu) (0.629)

    = 86.208 amu

    Thus, the average atomic mass of the element is 86.208 amu.
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