What is the [OH-] of 0.1 M HCl solution? hint: Remember that the water dissociation constant K w = 1 x 10 ^-14 M^2 Also, HCl is a stong acid and it will dissociate completely as follows: HCl H(+) + Cl(-) You will need to use the following formula: K w = Ka Kb = [H+] [OH-]