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Calculate the atomic mass (average) of c...

Calculate the atomic mass (average) of chlorine using the following data :

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Fractional abundance of `^35Cl = 0.7577`.
Molar mass = 34.9689
Fractional abundance of `^37Cl = 0.2423`
Molar mass = 36.9659 `therefore "Average atomic mass" = (0.7577)(34.9689 amu) + (0.2423)(36.9659 amu) = 26.4969 + 8.9568 = 35.4527`
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