Solutions and solubility
Answers are for parents and teachers.
1
If S = 48, what is the maximum mass of salt that dissolves in 150 g of water?
72
2
33 g of a salt dissolve in 150 g of water to give a saturated solution. Find S.
22
3
If S = 36, what is the mass of saturated solution per 100 g of water?
136
4
Why does gas escape when a bottle of fizzy drink is opened?
The pressure drops and the temperature is higher, so the solubility of CO₂ decreases.
5
In two sentences, state how a solution resembles a mixture and a compound.
It resembles a mixture because its composition is variable; it resembles a compound because it is homogeneous and its formation has a heat effect.