C6H5NH2 + 3Br2 =====è C6H2Br3NH2 + 3H+ + 3Br-
The polarity of the working electrode is then reversed, and the excess bromine is determined by a coulometric titration involving the generation of Cu(I):
Br2 + 2Cu+ ===è 2Br- + 2Cu2+
Suitbale quantities of KBr and copper (II) sulfate were added to a 25.0 ml sample containing aniline (C6H5NH2). Calculate the mass in micrograms of C6H5NH2 in the sample from the accompanying data.
Working electrode Functioning as
Generation Time (min) with a constant current of 1.00 mA
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