How much charge (in F) must flow through solution during electrolysis of aq. `Na_(2)SO_(4)` at `STP` to produce `33.6 L` of product gases at `50%` current efficiency:

Answer

4

Explanation

`H_(2)O overset(2F)rarr H_(2) +(1)/(2)O_(2)`
`V V//2`
`(3)/(2)V = 33.6 L`
`rArr V = 22.4 L`
let passed charge `= Q`
`Q xx (50)/(100) = 2F rArr Q = 4F`