Question 31

A solution of 0.1 M weak base (B) is titrated with 0.1 M of a strong acid (HA). The variation of pH of the solution with the volume of HA added is shown in the figure below. What is the $$p𝐾_b$$ of the base? The neutralization reaction is given by $$B + HA \rightarrow BH^+ + A^-$$.

Correct Answer: e

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