Question

You are provided with a mixture containing iron filings, ammonium chloride, sand and sodium chloride. Describe the procedure that you would use to separate the constituents from the mixture.​

Answer 1

Explanation:

We will use a magnet to remove iron fillings from the solution.

The things which are left now are NH4Cl, NaCl and sand.

Ammonium Chloride (NH4Cl) shows the property of sublimation.

So if we heat the solution a bit it will evaporate and the you can collect it by accumulation.

Now the solution has NaCl and sand.

If we add water to it, the NaCl will dissolve in the water. Then we can filter the sand from the solution by filter paper.

Now the solution has NaCl and water. We can evaporate the water to get NaCl.

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