Question

A water sample contains 204 mg of Caso, and 73 mg of Mg(HCO3)2
per litre. What is the total hardness in terms of Caco, equivalent?​

Answer 1

Answer:

The total hardness is determined by the sum of Ca and Mg: TH = (2×1.40 + 2×0.23) meq/L = 3.26 meq/L –