Answer
The atomic weight of $Ag$ is equal to 107.9 $u$.
Work Step by Step
Atomic weight:
$(Mass^{107}Ag)(Abundance^{107}Ag)$ + $(Mass^{109}Ag)(Abundance^{109}Ag)$
$(106.9051)(0.5184) + (108.9048)(0.4816) = 107.9\ u$
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