A total of 24.33 ml of 0.00245 M EDTA was used to titrate 100.00ml of a water sample. An AA analysis of the sample determined that the Ca2+ concentration is 9.32 mg/L.
a) Report the total hardness in mg CaCO3/L
b) Determine [Mg2+] in mol/L assuming that only Ca2+ and Mg2+ are present.