* Dilution: Dilution means adding more solvent (water in this case) to a solution. This increases the total volume of the solution.
* Hydronium Ions: Acids release hydronium ions (H₃O⁺) when dissolved in water. These ions are responsible for the acidic properties of the solution.
* Distribution: As the volume increases, the same number of hydronium ions are now spread out over a larger volume. This results in a lower concentration of hydronium ions per unit volume.
Example:
Imagine you have 10 hydronium ions in 100 mL of solution. The concentration is 10 ions/100 mL = 0.1 ions/mL. If you add water to make the volume 200 mL, you still have 10 hydronium ions, but now the concentration is 10 ions/200 mL = 0.05 ions/mL.
Key Point: Dilution reduces the concentration of hydronium ions, making the solution less acidic. The pH of the solution will increase as the concentration of hydronium ions decreases.
