Problem 3. A chemical analysis of a water sample has produced the results presented in the following table. Cation Concentration (mg/L) 350 Mg2+ 150 Na 30 20 K* (a) Is the analysis complete? (b) What is the total hardness (TH)? (c) What is the carbonate hardness (CH)? (d) What is the non-carbonate hardness (NCH)? Anion Concentration (mg/L) SO 80 сг 50 HCO3 600