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soldier1979 [14.2K]
2 years ago
11

How many atoms are in 123 g of calcium

Chemistry
1 answer:
Keith_Richards [23]2 years ago
5 0

Answer:

Molar mass of Ca = 40 g / mol , given 123 g Ca is 123/40= 3.075 moles,

1 mole = 6.022 * 10^23 atoms, so 3.075 moles Ca= 18.51*10^23 atoms

Explanation:

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