22. Решение задачки по химии №0238

5. Two samples of oil, standard and analyzed, weighing 1,000 g each, were diluted 10 times with methyl isobutyl ketone and sprayed into the flame of an atomic absorption spectrophotometer. The optical density of the vanadium line for a sample with a vanadium content ωst = 0.01% was Ast = 0.74 for a standard sample, and Ax = 0.520 for a sample with an unknown content. Calculate the molar concentration of vanadium in the sample.

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