ElectrochemistryHard
Question
H2O2 can be prepared by successive reactions:
2NH4HSO4 → H2 + (NH4)2S2O8
(NH4)2S2O8 + 2H2O → 2NH4HSO4 + H2O2
The first reaction is an electrolytic reaction and second is steam distillation. What amount of current would have to be used in first reaction to produce enough intermediate to yield 102 g pure H2O2 per hour. Assume current efficiency 50%.
Options
A.643.33 A
B.321.67 A
C.160.83 A
D.1286.67 A
Solution
$n_{H_{2}O_{2}\text{ formed}} = n_{\left( NH_{4} \right)_{2}S_{2}O_{8}} = n\text{ and }n_{eq}\left( NH_{4} \right)_{2}S_{2}O_{8} = \frac{Q}{F}$
$\Rightarrow n \times 2 = \frac{102}{34} \times 2 = \frac{i \times 3600 \times 0.5}{96500} $$$\left\lbrack 2SO_{4}^{2 -} \rightarrow S_{2}O_{8}^{2 -} + 2e^{-} \right\rbrack \Rightarrow i = 321.67\text{ A}$$
Create a free account to view solution
View Solution FreeMore Electrochemistry Questions
Which one of the following molecules has all the effect, namely inductive, mesomeric and hyperconjugative?...Zinc granules are added in excess to a 500 ml of 1.0 M nickel nitrate solution at 25°C until the equilibrium is reached....How many faradays are required to reduce one mol of MnO4- to Mn2+ -...A solution containing Na+, NO3-, Cl-, and SO42- ions, all at unit concentrations, is electrolyzed between nickel anode a...A gas Cl2 at 1 atm is bubbled through a solution containing a mixture of 1 M Br-1 and 1 M F-1 at 25oC. If the reduction ...