Chemistry, 13.07.2019 04:10 gaby8282

The recommended daily allowance (rda) of calcium is 1.2 g. calcium carbonate contains 12.0% calcium by mass. how many grams of calcium carbonate are needed to provide the rda of calcium? 0.10 g0.14 g1.2 g14 g1.0 x 101 g

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The recommended daily allowance (rda) of calcium is 1.2 g. calcium carbonate contains 12.0% calcium...