15. Solving a chemistry problem

15. Solving a chemistry problem

1. 10 ml of a solution of carboxylic acid in benzene was added to 100 ml of a solution containing 1⋅10-3 mol/l Cu2+, and the pH was adjusted to 4, at which the distribution coefficient of copper is 500. Find the degree of extraction, the degree of concentration and the concentration of copper in the organic phase.
Answer: R = 98%; 9.8 times; С (Сu2+) o.f. = 9.8×10-3 mol/l.

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