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Q.

The calcium content of calcium carbonate is expressed as a percentage. What is the percentage of calcium in calcium carbonate?

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Detailed Solution

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Molecular weight of CaCO3 = 40+12+(3×16) = 100 amu

Calcium mass in 1 mole of CaCO3 = 40 gm

Calcium percentage = 40100%= 40%

Hence, the percentage of calcium is 40% in calcium carbonate.

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The calcium content of calcium carbonate is expressed as a percentage. What is the percentage of calcium in calcium carbonate?