Chemistry, asked by bussapoojitha1234, 3 months ago

determination of hard water by EDTA method with all chemical names?

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Answered by sakshi746454

Answer:

EDTA can form four or six coordination bonds with a metal ion. Total hardness is due to the presence of bicarbonates, chlorides and sulphates of calcium and magnesium ions. The total hardness of water is estimated by titrating the water sample against EDTA using Eriochrome Black-T (EBT) indicator.

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