Question

Calculate the temporary, permanent and total hardness for a water sample in ppm containing following salts: Mg(HCO3)2 = 18.25 ppm, Al(NO3)3 = 12 ppm, CaCO3 = 15 ppm.

Answer 1

These soluble salts get mixed with natural water due to the following ... Temporary hardness [Mg ( HCO3)2 + Ca (HCO3)2] = 75 + 80 = 155 ppm