Question

the estimatiom of hardness of water by EDTA method invovles a titration & end point is​

Answer 1

Answer:

The hardness of water can be determined by using EDTA method. EDTA is Ethylene diamine tetra acetic acid. It dissolves in water with great difficulty, but its disodium salt dissolve in water quickly & completely It is hexa dentate ligend. It binds the metal ions in water to give stable chelate complex.

Explanation:

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