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41 votes
41 votes
describe how to separate iron fillings, iron (II) chloride crystals and sulphur powder all separately​

User Marvin Zumbado
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1 Answer

28 votes
28 votes

Answer:

1. Place in a platic bag and use a magnet to attract the iron filings. [See explanation for an alternative step].

2. Disolve the remainer in water

3. Pass the liquid through a microporous filter to capture the undissolved sulfur

4. Evaporate the filtered water to retrieve iron chloride crystals

Step-by-step explanation:

The Fe(II) chloride will dissolve in water. It is paramagnetic, and thus is weakly attracted to a magnet. The process above should not result in attracting the solid Fe(II) crystals. In fact, it is probably acceptable to dissolve the entire sample in water as the fisrt step. The dissolved Fe(II) chloride should also not be strongly attraced to a magnet, and htis step would allow easier separation of the iron filings.

Sulfur is not soluble in water, so it will collect as a dsolid in the microporous filter.

The Fe(II) has a high solubility, so it will wind up in the filtered soluition. Evaopate using heat or vacuum to retrieve the solid Fe(II) chloride crystals (they will be hydrated).

User Yaman
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