37. Решение задачи по химии №003 780

164. Determine the copper content (%) in 10 grams of samples, 1.0000 grams of which were dissolved in a volumetric flask with a capacity of 100 ml. The optical absorption of the resulting solution in a cell with a layer thickness of 3 cm was 0.675, and ε = 4.5×104.

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