what is the purpose of Buffer in any titration?Ex:In
determination of hardness of water we use ammonia
ammoniachloride buffer in titration with EDTA.Why?

Answer Posted / rahul jain

during the complexometric titration using EDTA, it is very necessary to maintain the pH of the solution near about 10.so we use ammonia ammoniumchloride buffer.if we will not use this buffer, during the titration pH of solution will go lower side(acidic side).

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