Question

Explain all the process How to remove

(i) temperary hardness
(ii) Permanent hardness
(iii) Both temperary and Permanent hardness

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Answer 1

Answer:

Your answer is....

• Temporary hardness of water can be removed by heating the water. As water is heated the calcium and magnesium carbonates are precipitated out of the water and collect as residue, the water can then be recollected and is free of these minerals.....

• Permanent Hardness of Water:

When the soluble salts of magnesium and calcium are present in the form of chlorides and sulfides in water, we call it permanent hardness because this hardness cannot be removed by boiling. We can remove this hardness by treating the water with washing soda....

• Addition of washing soda can remove both temporary as well as permanent hardness of water...

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Answer 2

hey mate here is your answer

Temperary hardness :

if water having hydro carbonates, carbonates, chlorides of calcium and magnesium using clarks method (Ca(OH2)) using lime water we can remove temporary hardness of water.

reaction :

Ca(HCO3)2 + Ca(OH)2 - - - -> CaCO3 +H2O

Permanent hardness :

addition of washing soda is one of the method to remove hardness of water using Na2CO3

reaction :

MgSO4 + Na2CO3 -------> MgCO3 + Na2SO4

to remove both permanent and temporary hardness :

we can use permuitit process

where sodium aluminium silicate is used to remove permanent as well as temporary hardness of water.

reaction :

NaAlSiO4 + CaCl2 ------> NaCl + Ca(AlSiO4)2

if u think this is an copied answer u can check my notes which i am keeping as an attachment

hope this answer helps u