Question

Silver exists as 51.84% 107ag and 48.16% 109ag. What is the average atomic mass of silver?

Answer 1

Average at.mass=(%abundance of 1 isotope)at wt+(%abundance of other isotope)at wt

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                                                                100

              =51.84*107+48.16*109/100

          =5546.88+5249.44/100

       =10796.32/100

=107.96 g ;approx=108 g