What is the pH of HCl solution when the hydrogen gas electrode shows a potential of -0.59 V at standard temperature and pressure?
Komal Kohli February 14, 2023
Question 34:What is the pH of HCl solution when the hydrogen gas electrode shows a potential of -0.59 V at standard temperature and pressure?
The correct answer is - The standard reduction potential of the hydrogen electrode is 0 V. At standard temperature and pressure, the potential of the hydrogen gas electrode is related to the pH of the solution by the Nernst equation:
E = E° - (0.0592 V / n) log([H+])
where E° is the standard reduction potential of the hydrogen electrode, n is the number of electrons transferred (which is 2 in this case), [H+] is the hydrogen ion concentration, and E is the electrode potential.
