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Answer to Question #45938 in Physical Chemistry for somanshu

Question #45938
A STANDARD HARD WATER CONTAIN 15gm of caco3 per litre 20ml of this standard water required 25ml of edta solution 100ml of an unknown sample of water required 18ml edta solution .the same sample water after boiling required 12 ml edta solution .calculate the temporary hardness of the given sample water in term of ppm.
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