Paper 1: Filtration And Crystallisation

Question 1

When do you use filtration?

Answer 1

To separate an insoluble substance from a liquid or a solution

Question 2

What is filtration used for?

Answer 2

To purify liquids or a solution by removing its impurities
To separate the solid you want from the liquid it’s mixed with

Question 3

How does filtration work?

Answer 3

Filter paper had tiny holes that is large enough to let water through but small enough to stop insoluble solid particles through

Question 4

What is the use of crystallisation?

Answer 4

To produce solid crystals from a solution

Question 5

What is the method for crystallisation?

Answer 5

Solution is heated to remove enough solvent to produce a saturated solution
The saturate solution is allowed to cool
Crystals form in the solution
Crystals are separated from the liquid and dried