How can you say that your domestic water sample contains hardness and
Suggest any one method for estimation of hardness of water.
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Hardness in water is due to the presence of dissolved salts of calcium and magnesium. ... 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.
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