Ammonium nitrate is produced by the reaction of ammonium hydroxide (a weak base) with nitric acid (a strong acid). Kb for ammonium hydroxide is 1.8 x...

 Ammonium nitrate is produced by the reaction of ammonium hydroxide (a weak base) with nitric acid (a strong acid). Kb for ammonium hydroxide is 1.8 x 10-5 according to the following reaction: 

NH4OH+H3O+→H2O+NH4 + 

 Write down the equation for the hydrolysis of NH4 +, the conjugate acid of NH4OH. 

What would be the pH of a 0.2 M solution of NH4Cl (the conjugate acid of NH4OH)?