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luda_lava [24]
2 years ago
15

Determine the number of atoms in 73.0 grams of calcium, Ca. (The

Chemistry
1 answer:
Elden [556K]2 years ago
7 0
# of atoms per mol = Avogadro’s # (6.022 x 10^23)

Number of mols = mass of substance / molar mass

73 g / 40.08 g = 1.8 mols of Ca in 73 grams

1.8 mols x avagadro’s # = 1.1 x 10^24 atoms in 73 grams of Ca
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