Hindi, asked by maddy4689, 2 months ago

Explain the estimation of hardness of water by edta

Answers

Answered by llitzmisspaglill703

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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