The standard cell potential (E°)of a voltaic cell constructed using the cell reaction below is 0.76 V: Zn (s) + 2H⁺ (aq) → Zn²⁺ (aq) + H₂ (g) With P_H₂ = 1.0 atm and [Zn²⁺] = 1.0 M, the cell potential is 0.53 V. The concentration of H⁺ in the cathode compartment is ________ M. A)1.3 × 10^-4 B)1.7 × 10^-8 C)1.1 × 10^-2 D)7.7 × 10³ E)1.3 × 10^-11

Question

Quizplus · Accepted Answer

The Nernst equation relates the cell potential to the concentrations of the reactants and products. Given the standard cell potential (E°) and the actual cell potential (E), we can solve for the concentration of H⁺ using the Nernst equation. The calculation shows that the concentration of H⁺ is approximately 1.3 × 10⁻⁴ M.

The Standard Cell Potential (E°)of a Voltaic Cell Constructed Using