Hydrofluoric acid has a pK_a value of 3.14.What is the value of pK_b for fluoride ion? A) 1.4 × 10^-11 B) 7.2 × 10^-4 C) 3.14 D) 10.86 E) 17.14

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Quizplus · Accepted Answer

The value of $pK_{a}$ for hydrofluoric acid (HF) is 3.14. The value of $pK_{b}$ for the fluoride ion (F-) can be found using the relationship $pK_{a} + pK_{b} = 14$ for water at 25°C. Therefore, $pK_{b} = 14 - 3.14 = 10.86$.

Hydrofluoric Acid Has a PKa Value of 3

Hydrofluoric Acid Has a PK_a Value of 3