Chemistry, asked by vandhana1739, 10 months ago

How can hardness of water be determined by edta method?

Answers

Answered by james4359
0

Explanation:

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. EDTA can form four or six coordination bonds with a metal ion.

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