Limestone To Calcium Carbonate Ratio

You take the atomic mass of calcium over the atomic mass of caco3 and multiply it by 100 to get the percentage.The mass of ca is 40.078 g the mass of c is 12.01 g, and the mass of 3o is 47.997 g 15.999 g xx 3.Add all the masses together to get a total mass of 100.085 g.