Question

At 298 K, the standard reduction potential for Cu²⁺/Cu electrode is 0.34 V.

Given: K_sp Cu(OH)₂ = 1 × 10^-20

Take 2.303RT/F = 0.059V

The reduction potential at pH = 14 for the above couple is (-)x x 10^-2 V. The value of x is_____.

Answer 1

Correct answer is 25