The recommended daily dose of calcium is 1200 mg. Calcium supplements often use calcium carbonate, $CaCO_3$ , as the source of calcium. What mass of $CaCO_3$ should be used in a tablet so that one tablet provides the recommended daily dose of calcium?

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Answer 1 · 2016-10-24T16:44:46

We need a daily dose of over 4 g calcium carbonate.

$"Moles of calcium"$ $=$ $(1200xx10^-3*g)/(40.08*g*mol^-1)$ $=$ $0.04008*mol$ .

And thus we need $0.04008*mol$ $"calcium carbonate"$ , i.e. a mass of $0.04008*molxx100.09*g*mol^-1$ $=$ $??g$ .

The recommended daily dose of calcium is 1200 mg. Calcium supplements often use calcium carbonate, CaCO_3CaCO_3, as the source of calcium. What mass of CaCO_3CaCO_3 should be used in a tablet so that one tablet provides the recommended daily dose of calcium?