Question

Ammonia, nh3, is a weak base with kb = 1. 8 x 10-5. In a 0. 8 m solution of ammonia, which would you expect to be true for the concentration of the ammonium ion, nh4+?.

Answer 1

In a 0.8 m solution of ammonia, the concentration of the ammonium ion (NH4+) is expected to be much lower than the concentration of the ammonia (NH3) due to the weak base nature of ammonia. The equilibrium constant (Kb) for ammonia is 1.8 x 10-5, meaning that only a small portion of NH3 molecules will dissociate into NH4+ ions in the solution.