What is the base ionization constant , K _b, for iodate, IO₃^{1 -}, if the acid ionization constant of HIO₃ equals 1.6×10^{- 1}?

Question

Quizplus · Accepted Answer

The base ionization constant for iodate can be determined using the acid ionization constant of HIO3 and the equilibrium equation:
HIO3 + H2O ⇌ H3O+ + IO3-
The equilibrium constant for this reaction is the acid ionization constant:
Ka = [H3O+][IO3-]/[HIO3]
Since the base ionization constant is the inverse of the acid ionization constant (Kb = Kw/Ka), we can use this equation to solve for Kb:
Kb = Kw/Ka = (1.0 × 10^-14)/(1.6 × 10^-1^5) = 6.3 × 10^-14
Therefore, the best choice is B.

What Is the Base Ionization Constant , K b, for Iodate

What Is the Base Ionization Constant , K _b, for Iodate