What happens to the concentration of H+ or Al3+ ions in a standard hydrogen electrode when using a non-constant salt?

In a standard hydrogen electrode, the concentration of ions is crucial for maintaining the electrode's potential. When using a non-constant salt, the concentration of H+ or Al3+ ions is affected because non-constant salts can introduce variability in ion concentration due to factors such as solubility limits, precipitation, or changing ionic strength.

As the electrochemical processes occur, such as the oxidation or reduction reactions at the electrode surface, the concentration of H+ ions can change. For instance, if a salt dissociates unevenly or its solubility varies with factors like temperature or dilution, it will lead to fluctuations in the ion concentration in the solution. These fluctuations can also be influenced by the movement of ions during the anodic and cathodic reactions occurring in the electrochemical cell.

Overall, the use of a non-constant salt introduces variability in the system that would lead to a fluctuating concentration of H+ or Al3+ ions, affecting the stability and reproducibility of the electrode potential.