Question

Faces:

13. Explain why a solution containing both NH3 and NH4Cl is less basic than a solution
containing only NH3 of the same concentration.​

Answer 1

In a solution containing ammonia solution and ammonium chloride, ammonia hydrolyses in water to produce hydroxyl ions.

NH3 +H2O → NH4+ + OH-

Ammonium chloride ionises in the solution to produce ammonium ions and chloride ions where the ammonium ions undergo hydrolysis to produce more ammonia solution.

`NH _(4) Cl→NH _(4) {}^( + ) + Cl {}^( - )`