More Seperating Techniques Flashcards
What does filtration do
It is used to separate a insoluble solid from a liquid.
What is the method of filtration
Put a piece of filter paper in a funnel , put that on top of a conical flask . Pour the mixture , over this we can separate liquid and solid
What does evaporation do
Used to separate a soluble solid from a solution .
Only able to do it if the solid doesn’t decompose with heat
What is the method of evaporation
Put the solution in an evaporating dish and slowly heat it up with a Bunsen burner . The solvent will then evaporate and the solution will get more concentrated until a solid forms
What does crystallisation do
Used to separate a soluble solid from a solution
What is the method of crystallisation
Place the solution in an evaporating dish and slowly heat it until some of the solvent has evaporated and crystals begin to form. When this happens , remove the dish from the heat and leave to cook
True or false
Crystallisation is faster than evaporation
FALSE
It takes much longer