Which of the following is true for a buffered solution? A) The solution resists any change in its [H⁺]. B) The solution will not change its pH very much even if a concentrated acid is added. C) The solution will not change its pH very much even if a strong base is added. D) Any H⁺ ions added will react with a conjugate base of a weak acid already in solution. E) all of these

Question

Quizplus · Accepted Answer

A buffered solution resists changes in pH when small amounts of acid or base are added. This is because it contains both a weak acid and its conjugate base (or a weak base and its conjugate acid) which can react with any added H+ or OH- ions to maintain a relatively constant pH. Therefore, all of the options listed are true for a buffered solution.

Which of the Following Is True for a Buffered Solution