Chapter7: Solutions And Colloids
Section: Chapter Questions
Problem 7.45E
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Calculate the amount of temporary and permanent hardness of a water sample in units of Degree Clarke’s, and ppm, which contains the following impurities: Ca(HCO3)2 = 8.1 mg/L, Mg(HCO3)2 = 29.2 mg/L, NaCl= 10 mg/L, MgCl2= 9.5 mg/L, MgSO4= 30 mg/L, CaSO4=13.6 mg/L. b. Is this soft, slightly hard, hard or very hard water? Atomic weigths: Ca: 40; Mg: 24; O: 16; C: 12; H: 1; Cl: 35.5 ; S: 32. Show your work in detail.
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