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One litre of a sample of hard water contains 1 mg of CaCl2 and 1 mg of MgCl2.Then the total hardness in terms of parts of CaCO3 per 108 parts of water by mass is:A .1.954 ppmB .1.260C .0.946D .none of these |
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Answer» One litre of a sample of hard water contains 1 mg of CaCl2 and 1 mg of MgCl2.Then the total hardness in terms of parts of CaCO3 per 108 parts of water by mass is: A . 1.954 ppm B . 1.260 C . 0.946 D . none of these |
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