A water contains 100 mg/l of Ca++, 23 mg/l of Na+, 24 mg/l of Mg++, 71 mg/l of Cl-, 96 mg/l of SO4--, 244 mg/l of HCO3- and 50 mg/l as CaCO3 of CO2. what is the total cation concentration in mg/l as CaCO3? what is the total hardness in mg/l as CaCO3? what is the total alkalinity in mg/l as CaCO3? what is the phenolphthalien alkalinity in mg/l as CaCO3? Calculate the total dissolved solids in mg/l. what is the ionic strength of water?