Chemistry, asked by rteja9409, 5 months ago

write the procedure for estimation of hardness

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Answered by anju936849

Answer:

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Answered by s02371joshuaprince47

Answer:

The estimation of hardness is based on complexometric titration. 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

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