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The hardness of a water sample (in ppm)(in terms of equivalents of CaCO3) containing 10-3M CaSO4 is : (molar mass of CaSO4 = 136g/mol). |
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Answer» Answer: 100 ppm Hardness due to CaCO3 = (10−3 × 103) × 100 = 100 ppm |
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