EaCalculate the annual cost of slaked lime and soda for treatio70,000 litres of water per day, if the water contains the following impuritiesCACO3 = 280 ppm35 ppmMg(HCO), = 100 ppm=110 ppm= 80 ppm%3D%3DCaSO4MgSO 4SiO,%3DNaCl%3DMgCl, = 138 ppmFe,O, = 55 ppmPurity of slaked lime is 85% and that of soda is 100%. Slaked lime costs 780per quintal and soda for 400 per quintal.[Atomic weights in gm : Ca = 40, Mg = 24, S = 32, Cl = 35.5, C = 12, 0 = 16,Na = 23, Fe = 56, and Si = 28].%3D%3D40 ррт.%3D%3D%3D

. Calculate the annual cost of slaked lime and soda for treating E. 70,000 litres of water per day, if the water contains the following impurities Mg(HCO, = 100 ppm CaSO4 MgSO, SiO2 CACO3 = 280 ppm NaCl = 35 ppm %3D %3D =110 ppm %3D %3D = 80 ppm MgCl, Fe,O3 Purity of slaked lime is 85% and that of soda is 100%. Slaked lime costs 78 per quintal and soda for 400 per quintal. [Atomic weights in gm : Ca = 40, Mg = 24, S = 32, Cl = 35.5,C = 12, 0 = 16 Na = 23, Fe = 56, and Si = 28]. = 138 ppm 55 ppm 40 ppm. %3D %3D %3D %3D %3D

. Calculate the annual cost of slaked lime and soda for treating E. 70,000 litres of water per day, if the water contains the following impurities Mg(HCO, = 100 ppm CaSO4 MgSO, SiO2 CACO3 = 280 ppm NaCl = 35 ppm %3D %3D =110 ppm %3D %3D = 80 ppm MgCl, Fe,O3 Purity of slaked lime is 85% and that of soda is 100%. Slaked lime costs 78 per quintal and soda for 400 per quintal. [Atomic weights in gm : Ca = 40, Mg = 24, S = 32, Cl = 35.5,C = 12, 0 = 16 Na = 23, Fe = 56, and Si = 28]. = 138 ppm 55 ppm 40 ppm. %3D %3D %3D %3D %3D

Chemistry: Principles and Reactions

8th Edition

ISBN:9781305079373

Author:William L. Masterton, Cecile N. Hurley

Publisher:William L. Masterton, Cecile N. Hurley

Chapter10: Solutions

Section: Chapter Questions

Problem 5QAP: Silver ions can be found in some of the city water piped into homes. The average concentration of...

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(b) Calculate the quantity of lime and soda required for softening one million litre of thefollowing sample of water. If the purities of lime and soda are 80% and 85%respectively. The impurities are Silica = 75 mg/lit. MgCl2 = 19 mg/lit. MgSO4 = 30mg/lit. CaSO4 = 68 mg/lit. MgCO3 = 884 mg/lit. CaCO3 = 120 mg/lit.
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