Question
Chemistry Question on Electrochemistry
What is standard reduction potential of Cu2+ | Cu(s) if E° of following cell is 0.46V ? Cu(s) | Cu2+(aqs) || Ag+(aq) | Ag(s) ( Eo = 0.80V)
A
1.56 V
B
1.44 V
C
1.26 V
D
0.34 V
Answer
0.34 V
Explanation
Solution
The overall cell potential, E°cell, is the difference between the reduction and oxidation potentials:
E°cell = E°reduction - E°oxidation
Given E°cell = 0.46V, and E°reduction = 0.80V,
we can rearrange the equation to solve for E°oxidation:
E°oxidation = E°reduction - E°cell
E°oxidation = 0.80V - 0.46V = 0.34V
Therefore, the standard reduction potential of Cu²⁺ | Cu(s) is 0.34V. The correct option is: (D) 0.34 V