total hardness

The total hardness in raw water is 500 milligram per liter as CaCO 3 . The total hardness of this raw water, expressed in milligram equivalent per liter, is (Consider the atomic we...

In a water sample, the concentrations of Ca 2+ , Mg 2+ and HCO$$_3^ - $$ are 100 mg/L, 36 mg/L and 122 mg/L, respectively. The atomic masses of various elements are : Ca = 40, Mg =...

Ion concentrations obtained for a groundwater sample (having pH=8.1) are given below. Ion $$Ca^{2+}$$ $$Mg^{2+}$$ $$Na^+$$ $$HCO_3^-$$ $$SO_4^{2-}$$ $$Cl^{-}$$ Ionconcentration(mg/...