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Numericals on hardness of water : How many grams of CaSO4 dissolved per litter gives 150 ppm hardness?
1 Answer
written 6.0 years ago by |
CaCO3 equivalent =Weight of hardness producing substance/equivalent weight of hardness producing substances X equivalent weight of CaCO3
150 = Wt. of hardness producing substance/68 X 50
Weight of hardness producing substance = 204 ppm