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

Responses

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

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

increasing the strength of the base
increasing the strength of the base

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

1 answer

To decrease the pH of a base in a solution at equilibrium, you would want to decrease the concentration of hydroxide ions (OH⁻), since pH is inversely related to the concentration of H⁺ ions and directly related to the concentration of OH⁻ ions.

Among the given options, the response that would decrease the pH of a base is:

decreasing the concentration of OH⁻ ions.

This is because a decrease in OH⁻ concentration will result in an increase in H⁺ concentration, thus lowering the pH.