C1.3 - SEPARATING MIXTURES

C1.3 - SEPARATING MIXTURES

1. A MIXTURE IS MADE UP OF TWO OR MORE SUBSTANCES THAT ARE NOT CHEMICALLY COMBINED

2. FILTRATION : USED TO SEPARATE SUBSTANCES INSOLUBLE IN A PARTICULAR SOLVENT FROM THOSE THAT ARE SOLUBLE IN THE SOLVENT

3. CRYSTALLISATION : TO OBTAIN A SAMPLE OF PURE SALT FROM THE SALT SOLUTION FOLLOWING FILTRATION YOU MUST EVAPORATE THE WATER/SOLUTION

4. DISTILLATION : CRYSTALLISATION SEPARATES A SOLUBLE SOLID FROM A SOLVENT BUT SOMETIMES YOU NEED TO COLLECT THE SOLVENT INSTEAD OF LETTING IT EVAPORATE IT OFF, DISTILLATION ALLOWS US TO DO THAT.