Filtration and crystallisation

Question 1

How is filtration used?

Answer 1

Filtration is used to seperate an insoluble solid from a liquid

Question 2

What are the four state symbols

Answer 2

• Solid
• Liquid
• Gas
• Aqueous

Question 3

Describe the process of filtration

Answer 3

Firstly, set up your beaker and make sure your filter funnel is sitting inside with the filtration paper lining the funnel. Next, pour the mixture you want to seperate into the funnel. The liquid should pass through the pores in the paper and the insoluble solid should be trapped

Question 4

How is crystallisation used

Answer 4

Crystallisation is used to seperate a soluble solid from a liquid

Question 5

Describe the process of crystallisation

Answer 5

Firstly, an aqueous solation is poured into a beaker. It is then left out for several days until the water evaporates. By then, the aqueous solid should have crystallised and will have seperated. Heat can be applied to speed up the process, however it is important to make sure that heating doesn’t affect the chemical that is meant to crystallise