The standard reduction potential E° for the reduction of permanganate in acidic solution is +1.51 V. What is the reduction potential for this half-reaction at pH = 5.00?
MnO₄–(aq) + 8 H⁺(aq) + 5 e– → Mn²⁺(aq) + 4 H₂O(l) E° = +1.51 V

Question

The standard reduction potential E° for the reduction of permanganate in acidic solution is +1.51 V. What is the reduction potential  for this half-reaction at pH = 5.00?
MnO4–(aq) + 8 H+(aq) + 5 e–  → Mn2+(aq) + 4 H2O(l) E° = +1.51 V

Accepted Answer

Correct answer: C.

Practice USNCO / General Chemistry questions like this — free