Hypochlorous Acid (HOCl) Has an Ionization Constant of 3

Multiple Choice

Hypochlorous acid (HOCl) has an ionization constant of 3.2 × 10^-8. What is its percent ionization in 1.0 M and 0.10 M solutions, respectively?

A) 0.018% and 0.057%
B) 0.032% and 0.0032%
C) 0.57% and 0.18%
D) 0.57% in both
E) 0.32% in both