English, asked by ridzirfan13, 2 months ago

Ou: 2 What's the working Principle of estim
ation of haudness of waten?

Answers

Answered by shubhra08

Explanation:

The estimation of hardness is based on complexometric titration. Hardness of water is determined by titrating with a standard solution of ethylene diamine tetra acetic acid (EDTA) which is a complexing agent. Since EDTA is insoluble in water, the disodium salt of EDTA is taken for this experiment.

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