An aqueous solution of ammonia is found to be basic. this observation can be explained by the net ionic equationhno3(aq) + h2o(l) → no3-(aq) + h3o+(aq).nh4+(aq) + h2o(l) → nh3(aq) + h3o+(aq).no3-(aq) + h2o(l) → hno3(aq) + oh-(aq).nh3(aq) + h2o(l) → nh4+(aq) + oh-(aq).

Explanation:

Bases are the species which furnish hydroxide ions in the solution or is capable of forming bonds with electron deficient species as they are electron rich species. When a base accepts a proton, it changes into a acid which is known as its conjugate acid.

Net ionic equation : In the net ionic equations, we are not include the spectator ions in the equations.  Only the species which are present in aqueous state dissociate. So, the net ionic equation of aqueous solution of ammonia is shown below as:-