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

Vitamin, #question describe the water soluble water? ..

#question describe the water soluble water? ..

Physical properties of benzoic acid, Physical Properties of Benzoic Acid ...

Physical Properties of Benzoic Acid (a) Benzoic Acid is a white crystalline solid. (b) Benzoic Acid has m.p. 394 K. (c) Benzoic Acid is sparingly soluble in cold water bu

Organic compounds., methods of purification of organic compounds with diagr...

methods of purification of organic compounds with diagrams ..

The electronic configuration of four elements, The electronic configuration...

The electronic configuration of four elements are given in brackets:  L (1s 2 , 2s 2 , 2p 1 , ) M (1s 1 , 2s 2 , 2p 5 ) Q (1s 2, 2s 2 , 2p 6 3s 1 ,) R ( 1s 1 , 2s 2 , 2p

D block elements, stability of cr3+ions from fe3+ions in aqueous medium

stability of cr3+ions from fe3+ions in aqueous medium

Cyanohydrin .., industrial application of cyanohydrin.?

industrial application of cyanohydrin.?

#atomic structure, Which have the same number of S electrons as the d - ele...

Which have the same number of S electrons as the d - electrons in fe2+

Show applications of coordination compounds, Q. Show Applications of coordi...

Q. Show Applications of coordination compounds? Innumerable applications of coordination compounds in fields as divergent as biology,  industry. Agriculture, analytical chemist

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