12. Solving a chemistry problem
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189. The content of permanganate in the reference solution at the time of the color intensities of the solution when determined by the dilution method is 1.55 mg. Calculate the manganese content (in g) in the test solution if the volumes of the reference and test solutions at the time of the coincidence of their color intensities were equal to 32.5 ml and 23.4 ml, respectively.
Answer: 1.12 mg.
Answer: 1.12 mg.
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