A buffer is a solution that weathers changes in pH when an acid or base is added. Buffers are usually made from combinations of weak acids and their corresponding bases or weak bases and their equivalent acids. The Henderson-Hasselbalch equation is often employed in working out the pH of buffers. This experiment intended to establish the variations in pH of acetate and ammonium buffers after the addition of hydrochloric acid and sodium hydroxide. It also aimed at making comparisons between experimentally obtained changes in pH and values calculated using the Henderson-Hasselbalch equation. There were disparities between the measured and calculated pH values due to accidental and systematic uncertainties. However, the observed trend was in accordance with the expected behavior of buffers. It was concluded that experimental techniques were convenient in establishing the buffering capabilities of weak acids and bases
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