MDCAT Chemistry MCQ #2231

A researcher compares two acetate buffers: one with [Salt]/[Acid] = 1 and another with [Salt]/[Acid] = 10. The first solution is superior because:

MDCAT Chemistry MCQ #2231

  1. Question 1

    Q1. A researcher compares two acetate buffers: one with [Salt]/[Acid] = 1 and another with [Salt]/[Acid] = 10. The first solution is superior because:

    • A) Maximum buffer capacity is achieved
    • B) The solution becomes a neutral mixture
    • C) The buffer range is at its minimum
    • D) The pH becomes independent of the pKa value

    Answer: Maximum buffer capacity is achieved

    Explanation: Buffer capacity is highest when [Salt] equals [Acid], providing maximum resistance to pH change, whereas buffer range is the pH interval.