Filtration & Crystalisation Flashcards
1
Q
A small amount of sodium chloride is dissolved into a beaker of water. Which of the following is the solvent?
A
Water
2
Q
Solid substances that can dissolve in liquids
A
soluble
3
Q
Solids that cannot dissolve
A
insoluble
4
Q
T/F: Filtration involves using a Bunsen burner flame to evaporate a solvent from a solution.
A
false
5
Q
What is the best method to obtain a sample of salt from a salt solution?
A
evaporation
6
Q
describe the process of crystilisation (4)
A
Heat the solution until you start to see crystals forming
Allow it to cool so that more crystals form
Allow the rest of the water to evaporate // Filter out the crystals using filter paper and a funnel
Dry the crystals e.g. by using a drying oven
7
Q
How would you separate pieces of rock from a solution of salt water?
A
filtration
