Difference between revisions of "Separating Mixtures"

Revision as of 08:29, 29 November 2019

Separating Mixtures is when you take out one of the substances from a mixture.

Different mixtures need to be separated in different ways:

Beach	Muddy Puddle	Sea Water

You can separate the sand from the pebbles with a sieve.	You can separate mud from water in the puddle with filter paper and a funnel.	You can separate salt from the water by evaporating the water in an evaporating dish.

Separating Mixtures is when you take out one or more of the substances from a mixture.

All mixtures can be separated without a chemical reaction.

There are several methods of separating mixtures that you should know:

Filtration	Evaporation

A mixture or a liquid and an insoluble solid can be separated by filtration.	A solute can be recovered from a solution by evaporating away the solvent.
Distillation	Chromatography

The solute and solvent can be separated by distillation.	When there are more than 1 solutes in a solution chromatography can separate them.

To separate a mixture is to remove one or more chemicals from a mixture of chemicals.

Techniques to separate mixtures are usually used to obtain pure samples of a chemical.

Different separation techniques are needed for different types of mixture:

Filtration - To remove an insoluble solid from mixture with a liquid.
Evaporation (Crystallisation) - Collecting a solute from a solution while losing the solvent.
Distillation - Collecting both the solute and solvent from a solution.
Fractional Distillation - Collecting different solvents from the same solution.
Chromatography - Separating two or more solutes in solution.
Centrifuge - Separating substances in a mixture by their density.

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 ===Extra Information===
 {{#ev:youtube|https://www.youtube.com/watch?v=q8Ent5CXhfY}}
+===References===
+====Edexcel====
+:[https://www.amazon.co.uk/gp/product/1782945741/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945741&linkCode=as2&tag=nrjc-21&linkId=30da4f2178da182547b62a7329d13b57 ''Separating mixtures, pages 100-102, GCSE Combined Science; The Revision Guide, CGP, Edexcel '']
+:[https://www.amazon.co.uk/gp/product/1782945725/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945725&linkCode=as2&tag=nrjc-21&linkId=694be7494de75af3349537d34e13f7f0 ''Separating mixtures, pages 37-39, GCSE Chemistry; The Revision Guide, CGP, Edexcel '']