A water sample was analyzed and was found to have the following constituents: Ca", mg/L HCO,, mg/L 82 so,, mg/L 122 112 123 Mg, mg/L 22.1 12 Na', mg/L K', mg/L Fe", mg/L Mn", mg/L 1.5 Cr, mg/L Co, mg/L 6.0 3.8 5.8 Temperature 25C 1. Calculate each of the concentrations as mg/L as CaCO,. 2. Using the equilibrium expression for carbonate and bicarbonate, calculate the hydrogen ion concentration: a. as moles/L. b. as mg/L. C. as mg/L as CaCO,. d. as pH.