C1.3&4 Separating mixtures

What is a mixture?
Two or more substances (elements or compounds) that are not chemically combined together.
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What are the 5 methods to separate a mixture?
Filtration, Crystallisation, Distillation, Fractional distillation, Chromatography
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What is filtration used to separate?
Substances that are insoluble in a solvent from the ones that are soluble in the solvent?
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Give an example of when you would use filtration.
To separate sand and salt.
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What is crystallisation used to separate?
A soluble solid from a solvent.
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Give an exmple of when you would use crystalisation.
To obtain pure salt from a salt solution.
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What is distillation used to separate?
A solvent from a soluble solid.
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Give an example of when you would use distillation.
To obtain pure water from a salt solution.
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What is fractional distillation used to separate?
Two liquids with similar boiling points.
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Give an example of when you would use fractional distillation.
To separate ethanol and water.
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What is chromatography used to separate?
Mixtures of substances dissolved in a solvent.
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Give an example of when you would use chromatography.
To separate the inks in a pen.
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Other cards in this set

Card 2

Front

What are the 5 methods to separate a mixture?

Back

Filtration, Crystallisation, Distillation, Fractional distillation, Chromatography

Card 3

Front

What is filtration used to separate?

Back

Preview of the front of card 3

Card 4

Front

Give an example of when you would use filtration.

Back

Preview of the front of card 4

Card 5

Front

What is crystallisation used to separate?

Back

Preview of the front of card 5
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