Solve this : 67 The reduction potential at pH=14 for the Cu2+/Cu couple is [Given, E Cu2+/cu=0 - Chemistry - Electrochemistry

Question

Solve this :

67   The   reduction   potential   at   pH
= 14   for   the   Cu 2 + / Cu   couple  
is   [ Given ,   E ° Cu 2 + / cu = 0 34   V ;
  K sp   Cu ( OH ) 2 = 1 × 10 - 19 ] ( a )   0
34   V ( b )   - 0 34   V ( c )   0 22   V
( d )   - 0 22   V

Ashish Khanna · Accepted Answer

Dear Student

As pH = - log H+

So, pOH = 0
[OH-]= 100      [Antilog of zero = 100][OH-]= 1          [ As zero power of anything will be 1]
Regards

Solve this : 67 . The reduction potential at pH = 14 for the Cu 2 + / Cu couple is [ Given , E ° Cu 2 + / cu = 0 . 34 V ; K sp Cu ( OH ) 2 = 1 × 10 - 19 ] ( a ) 0 . 34 V ( b ) - 0 . 34 V ( c ) 0 . 22 V ( d ) - 0 . 22 V

Solve this :

$67 . The reduction potential at pH = 14 for the {Cu}^{2 +} / Cu couple is [Given, E °_{{Cu}^{2 +} / cu} = 0.34 V; K_{sp} Cu (OH)_{2} = 1 \times 10^{- 19}] (a) 0.34 V (b) - 0.34 V (c) 0.22 V (d) - 0.22 V$