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Andrei [34K]
3 years ago
11

How many atoms are contained in 12.5 grams of silver? A. 6.97 × 1022 atoms B. 7.52 × 1024 atoms C. 0.116 atoms D. 1.92 × 10–25 a

toms
Chemistry
1 answer:
satela [25.4K]3 years ago
7 0
M(Ag)=12.5 g
Nₐ=6.022*10²³ mol⁻¹

n(Ag)=m(Ag)/M(Ag)

N=n(Ag)*Nₐ

N=Nₐm(Ag)/M(Ag)

N=6.022*10²³mol⁻¹*12.5g/107.868g/mol=6.97*10²²


A. 6.97 × 10²² atoms

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