Anonymous Anonymous

29-11-2016
Chemistry

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1, 2 and 3 ........

1, 2 and 3 ........ class=

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Anonymous Anonymous

29-11-2016

2.) Average atomic mass =Σ (abundance x molar mass) /100
= (12.64 x 302.04 + 18.23 x 304.12 + 69.13 x 305.03) /100
=304.486 u(Dalton) . This is avg atomic mass.

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