If a Small Amount of a Strong Base Is Added

question 38

Multiple Choice

If a small amount of a strong base is added to buffer made up of a weak acid,HA,and the sodium salt of its conjugate base,NaA,the pH of the buffer solution does not change appreciably because

• A)the K_a of HA is changed.
• B)No reaction occurs.
• C)the strong base reacts with A^- to give HA,which is a weak acid.
• D)the strong base reacts with HA to give AOH and H⁺.
• E)the strong base reacts with HA to give A^- which is a weak base.