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Numericals on hardness of water : How many grams of CaSO4 dissolved per litter gives 150 ppm hardness?
written 5.5 years ago by gravatar for teamques10 teamques10 ★ 64k •   modified 4.0 years ago
engineering chemistry
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written 5.5 years ago by gravatar for teamques10 teamques10 ★ 64k

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
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