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To separate an aqueous combination of common salt contaminated with limestone, which of the following separation procedures should be used?
 

Option: 1

The use of a separating funnel followed by aqueous mixture filtration


Option: 2

Distillation and then use of a separating funnel


Option: 3

The aqueous mixture is sublimated and then distilled.


Option: 4

The aqueous mixture is filtered and then evaporated.


Answers (1)

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Filtration is a technique for isolating pure substances from mixtures composed of particles, some of which are big enough to be collected by a porous medium.

 

The particle size of a mixture can vary greatly depending on its shape. Stream water, for example, contains a mix of naturally occurring biological creatures such as bacteria, viruses, and protozoa.

 

When one or more salts are dissolved, evaporation is used to extract homogenous mixtures.

An aqueous solution is a solution in which water serves as the solvent. It is frequently found in chemical equations by adding (aq) to the relevant chemical formula.

Filtration is a method of separating a solid from a liquid by passing it through a porous material (a filter) that retains the solid particles while allowing the liquid to pass through. 

In the instance of a common salt-limestone combination, the filtering procedure will separate the solid limestone from the aqueous solution of common salt.

The solid limestone may be removed after the filtration procedure, and the residual aqueous solution of common salt can be evaporated to recover the pure common salt. 

Evaporation is the process of converting a liquid to a gaseous state by heating it. As the liquid evaporates, the solid that remains is a pure common salt.

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