Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Q. Ca+2 = 20 ppm, Mg+2 = 25 ppm, CO2 = 30 ppm, HCO-3 = 150, K+ = 10 ppm. Calculate the lime (87% pure) and soda (91% pure) required softening 1 million litters of water sample.
Ans.
Calculation of CaCO3 equivalent of given impurities:
S.NO
substances
Amount of substances in mg/L
Multiplication factor
CaCO3 equivalent mg/L
1.
Ca++
20 ppm
100/40
100/40*20 =50
2.
Mg++
25 ppm
100/24
100/24*25 = 104.16
3.
CO2
30 ppm
100/44
100/44*30 = 68.181
4.
HCO-3
150 ppm
100/122
100/122*150 = 122.95
5.
K+
10 ppm
Not produce hardness
Lime required:
74/100[Mg++ + CO2 + HCO-3 as CaCO3 equivalent] mg/L *Volume of water*100/%purity
74/100[104.16 + 68.181 + 122.95] mg/L*1000000l*100/86
74/100[295.29] mg/L * 100000*100/87
= 251.16*106 mg
= 251.16*106 mg*1Kg/106
= 251.16
Soda required = 106/100[50 + 104.16 – 122.95] mg/L *1000000*100/91
= 100/106[31.21] mg/L*106*100/91
= 36.35*106 mg
= 36.35*106 mg*1Kg/106
= 36.35Kg
how to study nomenclature
verirification of law of chemical combination
Q. Complexation Behaviour of Group 13? As compared to the elements of Groups 1 and 2, elements of Group 13 show a greater tendency of complex formation. Because of lack of d-or
what acid would be added to limestone to form calcium chloride
define free radical mechanism of additon reaction
How to synthesize xylene? How many methods(ways) to synthesize xylene?
what is cis-trans isomerisation?
A gas is a fluid. It has no resistance to change of shape and will expand indefinitely to fill any container in which is held. The molecules or atoms which make up a gas interact o
type of electrode?
I WANT TO DISCUSS ABOUT IRON CHEMICAL ANALYSIS.POSSIBLE THAT?.
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd