Q)
(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
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