The pH of an aqueous solution is 3.25.

a. Calulate the concetration of the hydronium ions in the solution.
b. Calulate the concetration of the hydroxide ions in the solution.

a. pH = -log(H^+). Substitute and solve for (H^+)

b. (H^+)(OH^-) = Kw = 1E-14
Solve for OH^-