You are asked to soften 1 MGD groundwater extracted from Central Valley with constituents shown in the table below. Cations Ca2+ Mg2+ Na+ pH (mg/L) 112 35 57 7.2 Anions HCO3 CI SO4- CO2 (mg/L) 189 115 185 9 a. (1 points) Draw the bar graph showing the total, carbonate, and non-carbonate hardness of water as mg/L of CaCO3. b. (1 points) Estimate the concentrations of Ca(HCO3)2, Mg(HCO3)2, CaSO4, MgSO4, CaCl2 and MgCl2 as mg/L of CaCO3? State your assumptions if any. C. (1 pts) Calculate the amount (kg) of lime, CaO, required per day. d. (1 pts) Calculate the amount (kg) of soda ash, Na2CO3, required per day. e. (1 pts) Calculate the amount (kg) of solids precipitated per day.