calculate atomic weight of silver which has two isotopes with the following properties : silver-107 (106.91 amu, 51.84% natural occurence) and silver-109 (108.90 amu, 48.16% natural occurence). please help

The atomic weight of silver is 107.87 amu

Explanation:

Mass of isotope silver-107  = 106.91 amu

% abundance of isotope silver -107 = 51.84% =

Mass of isotope silver-109 = 108.90 amu

% abundance of isotope silver-109  = 48.16% =

Formula used for average atomic mass of an element :

Thus atomic weight of silver is 107.87 amu

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