15.3

• Buffering capacity — the number of protons or hydroxide ions that a buffer can absorb without a significant change in pH
• The larger the buffering capacity, the larger the concentrations of buffering components in the buffer
• Buffer absorbs relatively large amounts of protons or OH– ions with minor changes in pH
• Buffering capacity —Determined by the magnitudes of the acid [HA] and conjugate base [A–] in solution.