Difference between revisions of "Evaporation of Solutions"
(→Meaning) |
|||
| Line 36: | Line 36: | ||
==Key Stage 4== | ==Key Stage 4== | ||
===Meaning=== | ===Meaning=== | ||
| − | '''Evaporation of solution''', sometimes called '''Crystallisation''' is a technique used to [[Separating Mixtures|separate]] the [[solute]] from the [[solvent]] in a [[solution]], losing the [[solvent]]. | + | '''Evaporation of solution''', sometimes called '''Crystallisation''', is a technique used to [[Separating Mixtures|separate]] the [[solute]] from the [[solvent]] in a [[solution]], losing the [[solvent]]. |
===About Evaporation of Solutions=== | ===About Evaporation of Solutions=== | ||
Revision as of 16:33, 20 January 2019
Contents
Key Stage 2
Meaning
Evaporation of a solution is a way to get back a solid that has been dissolved in a liquid.
About Evaporation of Solutions
 |
You can separate salt from the water by evaporating the water in an evaporating dish. |  |
Examples
 |
| These people collect salt by putting sea water in small ponds and allowing the warm temperatures to evaporate the water away leaving the behind the salt. |
Key Stage 3
Meaning
Evaporation of a solution is a way to separate the mixture of a solution to recover the solute that has been dissolved in a solvent.
About Evaporation of Solutions
- The evaporation of solutions recovers the solutes but loses the solvent.
- Evaporation of solutions can be done by directly heating the solution or by giving time for the liquid to evaporate at low temperatures.
 |
| The diagram shows the experimental setup to evaporate away the solvent to leave behind the solute in the evaporating dish. |
Key Stage 4
Meaning
Evaporation of solution, sometimes called Crystallisation, is a technique used to separate the solute from the solvent in a solution, losing the solvent.
About Evaporation of Solutions
Evaporation of solutions can only be used for
- Separating solutes from solvents.
- Separating insoluble solids from a liquid.
Evaporation of solutions cannot be used for:
- Separating two solutes from each other in solution.
- Separating an insoluble solid from a soluble solid.