MDCAT Chemistry MCQ #2239

The Henderson-Hasselbalch equation for an acidic buffer differs from that of a basic buffer because the basic version:

MDCAT Chemistry MCQ #2239

  1. Question 1

    Q1. The Henderson-Hasselbalch equation for an acidic buffer differs from that of a basic buffer because the basic version:

    • A) Both use pKa to calculate the final pH
    • B) Acidic buffers use the ratio of [Base]/[Salt]
    • C) Basic buffers use pKb to calculate pOH first
    • D) The log term is subtracted in the acidic buffer equation

    Answer: Basic buffers use pKb to calculate pOH first

    Explanation: The Henderson equation for acidic buffers uses pKa and [Salt]/[Acid], whereas the basic version uses pOH, pKb, and [Salt]/[Base].