At 25 ^$\circ$ C, the Base Ionization Constant for NH₃ Is 1

Multiple Choice

At 25 ^$\circ$ C, the base ionization constant for NH₃ is 1.8 * 10^-5. Determine the hydroxide ion concentration in a 0.150 M solution of ammonia at 25 ^$\circ$ C.

A) 1.6 * 10^-2 M
B) 3.2 * 10^-2 M
C) 1.6 * 10^-3 M
D) 3.2 * 10^-3M
E) None of the above