Consider two separate solutions of equal concentration. The first solution contains sodium hydroxide, and the second solution contains barium hydroxide. Which solution has the lower pH?
A) The barium hydroxide solution.
B) The sodium hydroxide solution.
C) We need to know the concentrations to answer this question.
D) The pH's of the two solutions are equal.
E) We need to know the volumes to answer this question.

Question

Quizplus · Accepted Answer

Both sodium hydroxide and barium hydroxide are strong bases, but barium hydroxide has a higher tendency to ionize completely in water, resulting in a higher hydroxide ion concentration and a lower pH compared to sodium hydroxide. Therefore, the sodium hydroxide solution has a higher pH than the barium hydroxide solution.

Consider Two Separate Solutions of Equal Concentration