Question

A mixture contains iron (iii) chloride, calcium chloride and iron fillings. Describe how one can separate and recover the substances in the mixture.

Answer 1

Answer:

By Using Magnet.....

Explanation:

First dip A magnet into the mixture and then take it away.The iron fillings will stick with the magnet.And Calcium Chloride will remain as it is

Answer 2

Answer:

The separation of iron (iii) chloride, calcium chloride and iron filling from the mixture was given below.

Explanation:

Given:

• The iron mixture containing iron (iii) chloride, calcium chloride and iron fillings.

To separate and recover the substance in the mixture.

• The iron fillings can be separated form the mixture using magnetic separation process. The magnetic susceptible substance like iron can be separated from the mixture by the magnetic force.
• If iron gets reacted with chloride it cannot be separated from the mixture because Fe(II) and Fe(III) gets completely dissolved in the HCl.
• When it was dried it will form Fecl₂ and Fecl₃. EDTA was recommended to remove Fe(III).
• In calcium chloride, the chlorides can be separated by reverse osmosis process and the calcium can be separated by precipitation.
• Calcium chloride can be separated by heating the mother solution (Calcium hydroxide) which will precipitate. The precipitated substance can be separated by vacuum filtering or by centrifugation.
• By using crystallization, filtration or by sublimation methods chlorides can be separated from the mixture.

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