111. Solving a chemistry problem
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111. Solving a chemistry problem
194. One liter of water contains 48.6 mg of calcium bicarbonate and 29.6 mg of magnesium sulfate. What is the amount of Ca2 and Mg2 contained in a liter of water? What is the total hardness of water? (Answer: 0.6 * 10-3 mol / l; 0.4 * 10-2 mol / l.)
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