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An aqueous solution with chlorine 30 g/L and an organic compound with no chlorine at the rate 50 L/min were put into an extraction machine and produced aqueous solution with chlorine 5 g/L and organic compound with chlorine 10 g/L, what is the rate of aqueous solution?(a) 10 L/min(b) 20 L/min(c) 30 L/min(d) 40 L/min |
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Answer» Correct answer is (c) 30 L/min The best I can explain: Let the rate of an aqueous solution be x. Chlorine balance equation, x(30) + 50(0) = x(5) + 50(10), => x = 20 L/min. |
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