IMAT 2016 Q48 [pH Calculation]

An aqueous solution of NaOH has a concentration of 0.01 mol/L.

Given the ionic product of water is K_w = [H^+] [OH^–] = 10^{–14} mol^2/L^2 (at 25°C) and that the equation for pH is pH = – log_{10} [H^+], calculate the pH of the NaOH solution at 25°C.

A. 13
B. 11
C. 7
D. 14
E. 12