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(chatquestion)...Example 20 The purity of a sample of picric acid, C6H3N307, is determined by controlled-potential coulometry, converting the picric acid to triaminophenol, C6H9N30. A 0.2917-g sample of picric acid is placed in a 1000-mL volumetric flask and diluted to volume. A 10.00-mL portion of this solution is transferred to a coulometric cell and diluted till the Pt cathode is immersed. The exhaustive electrolysis of the sample requires 21.67 C of charge. Report the purity of the picric acid. = Notes Comments

asked Sep 17, 2020 by 390832952

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