Question

What is the standard electrode potential for the half-reaction \( \text{Cu}^{2+} + 2e^- \rightarrow \text{Cu} \)?

• A. +0.34 V
• B. -0.34 V
• C. +1.10 V
• D. 0 V

Hint:

Remember: Standard electrode potentials are typically found in reference tables. A positive potential means the species is more likely to be reduced, while a negative potential indicates oxidation.

Answer 1

The Correct Option is A

Step 1: Grasp standard electrode potential Standard electrode potential (E°) quantifies a half-cell's electron gain or loss tendency relative to the standard hydrogen electrode (SHE), assigned 0 V. A positive potential signifies electron gain (reduction), and a negative potential indicates electron loss (oxidation).Step 2: Review copper's standard electrode potential Reference tables show the standard electrode potential for \( \text{Cu}^{2+} + 2e^- \rightarrow \text{Cu} \) is \( +0.34 \, \text{V} \).Answer: Consequently, the standard electrode potential for \( \text{Cu}^{2+} + 2e^- \rightarrow \text{Cu} \) is \( +0.34 \, \text{V} \). Option (1) is the correct choice.