C1 Separating Mixtures

C1 Separating Mixtures

1. filtration

   • filtration can be used to separate a solid into a liquid.
   • filtration only works if the solid cannot dissolve in the liquid.

2. crystallisation

   • crystallisation separates solids that has desolved in a liquid.
   • crystallisation works when the solution is heated so that it evapourates .

3. Distillation

   • Distillation separates two liquids from each other.
   • when you put a liquid in a cup and heat it , it will evaporate to the top where it cools and condenses into water down the tube where you can collect the water.

4. fractional distillation

   • this is where a mixture of multiple liquids can be separated from each other.
   • i can also be used to separate gasses mixed together.
   • it only works if the substances are mixed together.

5. chromatography

   • chromatography is used to separate mixtures of a different colour pen inks and food colouring.
   • a mixture of dyes will be separated out as a solvant rises up the paper.
   • if the same dye is in both samples then there will be an identical spot at the same height above the line.

6. solute is a solid that dissolves.

7. a solvent is a liquid that lets solids dissolve in it

8. a soluble is something that dissolves in a liquid