Question 8.3: Ka for benzoic acid is 6.5 × 10^-5 What is the pKa of thi...

Introduction to General, Organic and Biochemistry

Ka for benzoic acid is 6.5 × $10^{-5}$ What is the $pK_{a}$ of this acid?

Strategy
The $pK_{a} is -log K_{a}$ . Thus, use your calculator to find the log of the $K_{a}$ and then take the negative of it.

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