Hypochlorous acid, \(\text{HOCl}\), has an acid-dissociation constant \(K_a = 2.5 \times 10^{-8}\) at \(25^\circ\text{C}\). A student prepares a \(0.10\text{ M}\) aqueous solution of sodium hypochlorite, \(\text{NaOCl(aq)}\), at \(25^\circ\text{C}\).

\[ \text{OCl}^-\text{(aq)} + \text{H}_2\text{O(l)} \rightleftharpoons \text{HOCl(aq)} + \text{OH}^-\text{(aq)} \]

Assuming that \(K_w = 1.0 \times 10^{-14}\) at \(25^\circ\text{C}\), what is the equilibrium concentration of \(\text{OH}^-\text{(aq)}\) in the solution?