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JAMB Chemistry 1995 Question 22

Question 22

Volumetric Analysis

The graph above shows the pH changes for the titration of a

Diagram for this question
  1. A.strong acid versus strong base
  2. B.weak acid versus strong base
  3. C.strong acid versus weak base
  4. D.weak acid versus weak base
Show the answer and explanation

Answer: B (weak acid versus strong base)

Explanation

The pH starts at about 3 (a weak acid) and the sharp jump runs from about 6 to 11, ending high (a strong base). This shape is typical of a weak acid titrated with a strong base.