145. Задачка по химии №014 5718

8.Molar absorption coefficient of a beryllium complex with acetylacetone in chloroform at 290 mn is equal to 30,000. Determine the percentage of beryllium in a portion of 1 g dissolved in 50 cm3 in a cuvette. in a cuvette 5 cm is equal to 0.474

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