Question
100 cc of water sample requires 10.2 cc of 0.01 M EDTA for titration in presence of eriochrome black T indicator. Calculate total hardness.
Answer :
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To calculate the total hardness of the water sample, we need to understand the concept of hardness and the titration process using EDTA (ethylene diamine tetraacetic acid). Total hardness in water is primarily due to the presence of calcium (Ca2+) and magnesium (Mg2+) ions.
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