engineering chemistry MCQ #2782

For the cell: Pt, H₂ (1 atm) / H⁺ (pH = x) // Cl⁻ (1M) / AgCl, Ag, E_cell = 0.58 V at 25°C. The pH of the solution is

engineering chemistry MCQ #2782

Question 1
Q1. For the cell: Pt, H₂ (1 atm) / H⁺ (pH = x) // Cl⁻ (1M) / AgCl, Ag, E_cell = 0.58 V at 25°C. The pH of the solution is
- A) 3.0
- B) 2.0
- C) 4.0
- D) 1.0
Answer: 3.0
Explanation: Using E_cell = E⁰ - 0.0591 log([H⁺]), and known E⁰ for AgCl/Ag, Cl⁻.