Final answer:
True. For a buffer to be effective, the amount of added acid or base should be small compared to the amount of buffer present.
Step-by-step explanation:
True. For a buffer to be effective, the amount of added acid or base should be small compared to the amount of buffer present. A buffer is a solution of a weak acid and its conjugate base, and it works by neutralizing any added acid or base, maintaining a relatively constant pH. The buffer capacity of a solution determines how much acid or base it can resist before the pH changes significantly.