Difference between revisions of "Separating Mixtures"

Revision as of 14:44, 20 January 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.

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.
Chromatography - Separating two or more solutes in solution.

@@ Line 62: / Line 62: @@
 | style="height:20px; width:200px; text-align:center;" |When there are more than 1  [[solute]]s in a [[solution]] [[chromatography]] can '''separate''' them.
 |}
+==Key Stage 4==
+===Meaning===
+To '''separate a mixture''' is to remove one or more [[chemical]]s from a [[mixture]] of [[chemical]]s.
+===About Separating Mixtures===
+: 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 of Solutions|Evaporation]] (*[[Evaporation of Solutions|Crystallisation]]) - Collecting a [[solute]] from a [[solution]] while losing the [[solvent]].
+*[[Distillation]] - Collecting both the [[solute]] and [[solvent]] from a [[solution]].
+*[[Chromatography]] - '''Separating''' two or more [[solute]]s in [[solution]].