Explain qualitatively how acidic buffers resist pH change.

In the subtopic Buffer action (A-level only), this AQA A-Level Chemistry 7405 learning objective focuses on explain qualitatively how acidic buffers resist pH change. It belongs to Acids and bases (A-level only), so revision should stay anchored to this exact subtopic rather than drifting into a generic GCSE-level chemistry summary. Approved keywords to use include buffer, pH, acidic buffer. PH change resistance. means the ability of a buffer solution to maintain a relatively constant pH despite the addition of acids or bases, due to the equilibrium between the weak acid and its conjugate base Avoid the mistake of students often confuse how acidic buffers resist pH change, thinking they neutralize added acids or bases rather than using equilibrium; instead, to explain how acidic buffers resist pH change, state that they contain a weak acid and its conjugate base. When an acid is added, the conjugate base reacts with it, minimizing pH change. Conversely, when a base is added, the weak acid donates protons to counteract the increase in pH For exam answers, explain how acidic buffers resist pH change by discussing the equilibrium between the weak acid and its conjugate base