145. Solving a chemistry problem
20. By spectrophotometric determination of nickel in the form of a compound with dimethylglyoxime in the presence of an oxidizing agent in an alkaline medium for a solution with a nickel concentration of 0.025 mg / 50.00 cm3, an optical density of 0.324 in a two-centimeter cuvette was obtained. Calculate the molar coefficient of light absorption.
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