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The standard reduction potential of the ...

The standard reduction potential of the half - cell:
`NO_(3)^(-)(aq)+2H^(+)+e rarr NO_(2)(g)+H_(2)O` is `0.78V.`
(1) Calculate the reduction potential in 8 M `H^(+)`.

Text Solution

Verified by Experts

Reaction :
`NO_(3)^(-)(aq)+2H^(+)(aq)+e rarr NO_(2)(g)+H_(2)O(l)`
`E_("cell")=E_("cell")^(@)-(0.059)/(n)log.([NO_(2)][H_(2)O])/([NO_(3)^(-)][H^(+)]^(2))`
`=0.78-(0.059)/(1)log.(1xx1)/(1xx(8)^(2))=0.887V`
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