Effect of Excess Base on Concentration of Hydroxide Ions in NaOH Solution

Introduction
When excess base is dissolved in a solution of NaOH, the concentration of hydroxide ions can be affected. This phenomenon can be explained through a series of steps:

Initial State
- Initially, NaOH dissociates in water to form Na+ and OH- ions.
- The concentration of hydroxide ions is determined by the amount of NaOH dissolved in the solution.

Addition of Excess Base
- When excess base is added to the solution, more hydroxide ions are introduced.
- The additional base reacts with water to form more hydroxide ions, increasing their concentration in the solution.

Equilibrium Shift
- The excess base drives the equilibrium of the reaction to the right, resulting in more hydroxide ions being present.
- This shift in equilibrium increases the concentration of hydroxide ions in the solution.

Overall Effect
- As a result of adding excess base, the concentration of hydroxide ions in the NaOH solution increases.
- This increase is proportional to the amount of excess base added to the solution.

Conclusion
In conclusion, the concentration of hydroxide ions in a NaOH solution is affected by the addition of excess base. The excess base introduces more hydroxide ions into the solution, leading to an increase in their concentration.

The concentration of hydroxide ions increases