Science, asked by aman715251, 10 months ago

Write the method of determination of hardness water by EDTA

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Answered by noshabanasreen01

Answer:

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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