How to calculate caco3 equivalent , Chemistry

Assignment Help:

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


Related Discussions:- How to calculate caco3 equivalent

The element having atomic number 14 should, The atom of the element having ...

The atom of the element having atomic number 14 should have: (1) One unpaired electron (2) Two unpaired electrons (3) Three unpaired electrons (4) Four unpaired electr

Oxidation test - sulphur, Oxidation Test - Sulphur Sulphur can as ...

Oxidation Test - Sulphur Sulphur can as well be tested by oxidation test. The organic compound is fused along with fusion mixture (a mixture of sodium carbonate and potass

Organic, formula of acetic acid

formula of acetic acid

.Dienes, Physical properties of dienes

Physical properties of dienes

Application of electrometallurgy, Q. Application of electrometallurgy? ...

Q. Application of electrometallurgy? In theory, aluminium metal would be made the same way. But, aluminium trichloride is covalent and it does not conductor of electricity. As

Physical properties of dihydrogen, I want information on physical propertie...

I want information on physical properties of dihydrogen

Electronic configuration of deuterium atom, Electronic configuration of deu...

Electronic configuration of deuterium atom is: (1) 1s 1                    (2) 2s 2                  (3) 2s 1                      (4) 1s 2 Ans: 1s 1

Formaldehyde, Ask question formaldehyde reacts with NH3 #Minimum 100 words ...

Ask question formaldehyde reacts with NH3 #Minimum 100 words accepted#

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

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!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd