. 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
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Author:William L. Masterton, Cecile N. Hurley
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Question
![Ea
Calculate the annual cost of slaked lime and soda for treatio
70,000 litres of water per day, if the water contains the following impurities
CACO3 = 280 ppm
35 ppm
Mg(HCO), = 100 ppm
=110 ppm
= 80 ppm
%3D
%3D
CaSO4
MgSO 4
SiO,
%3D
NaCl
%3D
MgCl, = 138 ppm
Fe,O, = 55 ppm
Purity of slaked lime is 85% and that of soda is 100%. Slaked lime costs 780
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].
%3D
%3D
40 ррт.
%3D
%3D
%3D](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F69992d9e-9ab1-41fc-a849-49585310b5a4%2Ffd2c35fd-b68f-4f61-8e48-99279a092239%2F97jtr5_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Ea
Calculate the annual cost of slaked lime and soda for treatio
70,000 litres of water per day, if the water contains the following impurities
CACO3 = 280 ppm
35 ppm
Mg(HCO), = 100 ppm
=110 ppm
= 80 ppm
%3D
%3D
CaSO4
MgSO 4
SiO,
%3D
NaCl
%3D
MgCl, = 138 ppm
Fe,O, = 55 ppm
Purity of slaked lime is 85% and that of soda is 100%. Slaked lime costs 780
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].
%3D
%3D
40 ррт.
%3D
%3D
%3D
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