Question

Identify the acid and base for ammonium chloride salt. What would be the nature of this salt? Mention the pH range of this salt.

Answer with proper justifications.

Answer 1

Hello...

◆ AMMONIUM HYDROXIDE + HYDROGEN CHLORIDE > AMMONIUM CHLORIDE + WATER.

AMMONIUM HYDROXIDE = NH4OH

HYDROGEN CHLORIDE = HCI

AMMONIUM CHLORIDE = NH4CL

WATER = H2O

◆ HYDROGEN CHLORIDE a weak base and AMMONIUM HYDROXIDE is a strong acid so nature of salt formed will be acidic in nature.

◆ pH range of the salt is Below 7

Hope it helps you...

Answer 2

Hey Friend,

Ammonium chloride can be prepared by the following reaction -
HCl + NH4OH ---> NH4Cl + H2O 

Therefore, the radicals present in NH4Cl are NH4+ and Cl- 
and the reaction is a neutralization reaction, where acid and base are reacting to give salt and water.

The acid used is hydrochloric acid and the base used is Ammonium hydroxide.

Now, HCl is a strong acid and NH4OH is a weak base. Thus, NH4Cl is prepared from a strong acid and weak base! Therefore, the salt will be a little acidic in nature.

Since the salt is acidic in nature the pH of the salt will be less than 7. The pH range of NH4Cl is 4.5 to 6.0

Hope it helps!