Question

Suggest separation technique(s) one would need to employ to separate the mixture of Potassium chloride and ammonium chloride.

Answer 1

Answer:

Separation of mixtures:

• The process of separation of different constituents of a mixture using physical methods is known as the separation of mixtures.

The separation of the mixture of Potassium chloride$\left(\mathrm{KCl}\right)$ and Ammonium chloride$\left({\mathrm{NH}}_4\mathrm{Cl}\right)$:

Sublimation:

• The process of separating the mixture of Potassium chloride and Ammonium chloride is sublimation.
• In this process a sublimate substance changes its state from solid to gas directly without passing through a liquid state on heating.
• In this mixture of Potassium chloride and Ammonium chloride, Ammonium chloride is a sublimate so it gets changed into vapor and can be separated in another container.
• Potassium chloride will be left behind in the container.
• After cooling the vapor of Ammonium chloride, we get it in its original solid state.
• Potassium chloride will be left behind in the container.

Conclusion:
Therefore, Ammonium chloride$\left({\mathrm{NH}}_4\mathrm{Cl}\right)$ is separated from a mixture of Ammonium Chloride and Potassium chloride $\left(\mathrm{KCl}\right)$by the process of Sublimation.