Calculate the pH of a buffer when the reduction potential of hydrogen electrode placed in the buffer solution is found to be `-0.413V`.

Options

A. 10
B. 4
C. 7
D. 12

Answer

C

Explanation

`-0.413=0.059log((1)/([H^(+)]))` or `(0.414)/(0.059)=-logH^(+)=pH` or `pH=7`