20. Solving a chemistry problem
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20. Solving a chemistry problem
87. Dissolve 20 mg of codeine in 25 ml of glacial acetic acid. The resistance of the resulting solution in a cell with electrodes with an area of 4 cm2 and a distance of 0.65 cm between them is 1920 Ohm. Determine if there are electrically conductive impurities (foreign salts) in codeine.
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