Evaluate the hardness as ppm caco3

Reference no: EM13333371

A 250.0-mL sample of water was adjusted to pH 10 with ammonia buffer and calmagite indicator was added. The prepared sample required 30.84 mL of 0.00802 M EDTA for titration to the endpoint. Calculate the hardness as ppm CaCO3

Reference no: EM13333371

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