K _a for HF is 3.5×10^{- 4}. Calculate K _b for the fluoride ion.

Question

Quizplus · Accepted Answer

The equilibrium constant for the reaction HF ⇌ H+ + F- is given. To find the equilibrium constant for the reverse reaction, we need to invert the expression for K: K = [H+][F-]/[HF]. This will give us the equilibrium constant for the reaction F- + H+ ⇌ HF. The stoichiometry of the reaction has not changed, so the values of Kc and Kp will remain the same. The value of K for the reverse reaction will be the inverse of K for the forward reaction, which means K for F- will be the inverse of K for HF. Therefore, the correct answer is E, which is the inverse of the given value of K for HF.

K a for HF Is 3

K _a for HF Is 3