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Electrolysis and Electrolytes

Aqueous solut...

Question

Aqueous solution of $m - d i n i t r o s o b e n z e n e$ was electrolyzed for $2$ hours passing current of $2$ A with efficiency of $90$ . Calculate the amount of $3$ -aminoaniline.
$(M w = 108 g m o l^{- 1}$ )

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Solution

$n_{f}$ (for nitrobenzene to amino benzene
$∴ W_{1} = z \times i \times t = \frac{E}{F} \times i \times t = \frac{M_{0}}{n_{f}} \times \frac{i \times t}{F}$
$W_{1} = (\frac{108}{6} \frac{2 \times 2 \times 3600 s e c}{96500}) g .$ (For $100 %$ efficiency)
$F o r 90 % \to W_{2} = 0.9 {W_{1}} g . = 2.417 g .$

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