-24. Determine the lime and soda ash dose, in mg/L as CaCO3, to soften the Kool Artesian (Problem 7-10) water to a final hardness of 115mg/L as CaCO3. Assume the water temperature as pumped from the ground is 10C. If the price of lime, purchased as CaO, is S100 per megagram (Mg), and the price of soda ash, purchased as Na2CO3 is $200 per Mg, what is the annual chemical cost of treating 0.500m3/s of this water? Assume all the alkalinity is bicarbonate, lime is 88% pure, and soda ash is 98% pure. 0. An analysis of bottled water from the Kool Artesian Water Bottling Company is listed below. Determine the total, carbonate, and noncarbonate hardness in mg/L as CaCO3 and in meq/L using the predominant polyvalent cation definition of hardness. (Hint: use the solution to Problem 7-1 to find the bicarbonate concentration.) Note: All units are "mg/L as the ion" unless stated otherwise