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Hydrogen peroxide can be prepared by suc...

Hydrogen peroxide can be prepared by successive reaction:
`2NH_(4)HSO_(4) rarr H_(2)+(NH_(4))_(2)S_(2)O_(8)`
`(NH_(4))_(2)S_(2)O_(8)+2H_(2)O rarr 2NH_(4)HSO_(4)+H_(2)O_(2)`
The first reaction is an electrolytic reaction the second is steam distillation. what amount ofcurrent would have to be used in first reaction to produce enough intermediate to yield 100g pure `H_(2)O_(2)` per hour ? Assume `50%` anode current efficiency.

Text Solution

Verified by Experts

The correct Answer is:
`315.36A`
moles of `H_(2)O_(2) =` moles of `H_(2) = (100)/(34)`
wt. of `H_(2) = (100)/(17) = Z` it
`(100)/(17) = (1 xx1 xx 0.5 xx 3600)/(96500)`
`i = 315.36 Amp`.
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H_(2)O_(2) can be produced by the Ammonium hydrogen sulphate. Reactions occuring in electrolytic cell. NH_(4)HSO_(4) rarr NH_(4)^(+) +H^(+) +SO_(4)^(2-) 2SO_(4)^(2-) rarr S_(2)O_(8)^(2-) +2e^(-) (Anode) 2H^(+) +2e^(-) rarr H_(2) (cathode) (NH_(4))_(2)S_(2)O_(8) +2H_(2)O rarr 2NH_(4)HSO_(4) +H_(2)O_(2) Hydrolysis of Ammonium persulphate Assume 100% yield of hydrolysis reaction. What is the current efficiency when 100 Amp current is passed for 965 sec, in order to produce 17 gm of H_(2)O_(2) .