Question: Note: All reported as mg/L as the ion unless stated otherwise. 7-6. Determine the total, carbonate, and noncarbonate hardness in mg/L as CaCO3 and in

Note: All reported as "mg/L as the ion" unless stated otherwise. 7-6. Determine the total, carbonate, and noncarbonate hardness in mg/L as CaCO3 and in meq/L for the water analysis in Problem 7-5 using the predominant polyvalent cations. 7-7. Calculate the total, carbonate, and noncarbonate hardness for the water analysis in Problem 7-5 in mg/L as CaCO3 using all of the polyvalent cations. What is the percent error in using only the predominant cations as in Problem 7-6

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