Filtration and Crystallisation

Question 1

What is the purpose of filtration?

Answer 1

To separate an insoluble solid from a liquid

Question 2

Describe the process of filtration.

Answer 2

• Place filter paper folded in a cone shape into a funnel
• Pour mixture in
• Liquid part of mixture runs through paper, leaving behind a solid residue

Question 3

What is the purpose of crystallisation?

Answer 3

To separate a soluble solid from a solution

Question 4

Describe the process of crystallisation.

Answer 4

• Pour solution into evaporating dish and heat the solution
• Once you see crystals start to form, remove the dish from heat and leave the solution to cool
• Filter the crystals out of the solution, and leave them in a warm place to dry