7. Решение задачи по химии №000 782

5. A 1 g sample of metal containing 2*10-3 lead was dissolved in 25 ml of acid, 5 ml were taken, and after appropriate treatment, 10 ml of a colored solution was obtained. Calculate the molar coefficient of light absorption if the optical density of this solution with a cuvette layer thickness of 2 cm turned out to be 0.020.

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