The standard reduction potential for the half cell `:`
`NO_(3)^(c-)(aq)+2H^(c-) +e^(-) rarr NO_(2)(g)+H_(2)O` is `0.78V`.
`a.` Calculate the reduction potential in `8M H^(o+)`.
`b.` What will be the reduction potential of the half cell in a neutral solution ? Assume all the other species to be at unit concentration.

Explanation

(i) `E=0.78 -0.0592log. (1)/(8^(2))=0.887V` (ii)`E=0.78-0.0592 log. 1/((10^(-7))^(2))=0.0488V`