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

grams of calcium carbonate are needed to provide the RDA of calcium.

Explanation:

Given,

The recommended daily allowance (RDA) of calcium is = 1.2 g

Calcium present in calcium carbonate = 12.0 % by mass i.e. 12 g of calcium is present in 100 g of calcium carbonate

Thus if 12 g of calcium is provided by 100 g of calcium carbonate.

1.2 g of of calcium is provided by = of calcium carbonate.

Thus correct option is g

the millers tale is the answer.