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Well, Ca has an Atomic Mass of 40, so one mole of Ca (6.022x1023 atoms) equals 40g.
To get 5kg of Ca, you would times the 40g (one mole) by 125.
5kg of Ca has 125x(6.022x1023), or
602200000000000000000000 atoms.

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14y ago
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10y ago

There are 6.02 x 1023 particles in one mole of any substance. In 5.90 moles of calcium, there would be 5.90 x 6.02 x 1023 = 3.55 x 1024 Ca atoms.

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6y ago

155 grams of calcium have 22,539077.10e23 atoms.

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10y ago

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Q: How many atoms are in 125 grams of Calcium?
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