Question

Describe how a buffer behaves. Your description should include an explanation of why the addition of NaOH to the HAc solution formed a buffer. What happens to the pH when a small quantity of a strong acid or base is added to a buffer solution? What happens to the pH of the buffer solution when a large quantity of acid or base is added? Explain your observations.



my answer so far is: Buffers are commonly at a neutral pH of 7. When it is added to a more acidic solution it will make the solution turn more basic, and vice versa. However, the buffer keeps the solution at a natural pH because it never stops the reaction from shifting; therefore, it is constantly going between basic and acidic to counteract each other.

Answer 1

Buffers are commonly at a neutral pH of 7; this is wrong. Buffers are usually equal to the pKa or pKb of the acid and its conjugate base, or the base and its conjugate acid. You are right: they do counter act the addition of an acid by by making more of its conjugate base, or the addition of base by making more of its conjugate acid to resist a change in pH. Google more information concerning this.