Question

Which change would decrease the pH of a base in a solution at equilibrium?(1 point)
Responses

increasing the initial concentration of solute
increasing the initial concentration of solute

decreasing the amount of water added to the solute
decreasing the amount of water added to the solute

decreasing the concentration of OH– ions
decreasing the concentration of OH – ions

increasing the strength of the base

Answer 1

To decrease the pH of a base in a solution at equilibrium, the most effective option would be:

**decreasing the concentration of OH– ions**

This is because pH is inversely related to the concentration of hydroxide ions (OH–) in a solution. Lowering the concentration of OH– ions will lead to an increase in hydrogen ion (H+) concentration, which in turn will decrease the pH.

The other options either do not directly lead to a decrease in pH or may even increase pH.