More Seperating Techniques

Question 1

What does filtration do

Answer 1

It is used to separate a insoluble solid from a liquid.

Question 2

What is the method of filtration

Answer 2

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

Question 3

What does evaporation do

Answer 3

Used to separate a soluble solid from a solution .

Only able to do it if the solid doesn’t decompose with heat

Question 4

What is the method of evaporation

Answer 4

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

Question 5

What does crystallisation do

Answer 5

Used to separate a soluble solid from a solution

Question 6

What is the method of crystallisation

Answer 6

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

Question 7

True or false

Crystallisation is faster than evaporation

Answer 7

FALSE

It takes much longer