47. Solving a chemistry problem
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47. Solving a chemistry problem
23. For the determination of copper in a non-ferrous alloy from a sample of 2.000 g, after dissolving the treatment with ammonia, 500 ml of a colored solution was obtained, the optical density of which in a cell 10 cm thick was 0.167. Determine the percentage of copper in the alloy if the molar extinction ratio is 423
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