Chapter 16, Problem 22PE

Aniline, ${\text{C}}_{\text{6}}{\text{H}}_{\text{5}}{\text{NH}}_{\text{2}}$, is a precursor for many dyes used to color fabrics, known as aniline dyes. Aniline has a of $4.3\times {10}^{-10}$. What is the pOH of a 0.025 molar solution of aniline? (Hint: Calculate the ${\text{OH}}^{\text{-}}$ concentration.)