Dissolve or not
Solubility of ionic compounds.
Salt in a glass
Sodium chloride is stirred into water. Then it is stirred into kerosene.
What happens in each?
What this lesson covers
The idea
Ionic (electrovalent) compounds are generally soluble in water and insoluble in solvents such as kerosene and petrol.
Salt in a glass
Sodium chloride is stirred into water. Then it is stirred into kerosene.
What happens in each?
- It dissolves in water but not in kerosene
- It dissolves in kerosene but not in water
- It dissolves in both
Three liquids
Open every tab.
Which liquid
Ionic compounds are generally soluble in water. They are generally insoluble in solvents such as kerosene and petrol.
Ionic (electrovalent) compounds are generally soluble in water and insoluble in solvents such as kerosene and petrol.
Notes
Ionic compounds are generally soluble in water and insoluble in kerosene and petrol.
Check yourself
Ionic compounds are generally soluble in ...
Which statement is correct?
Sodium chloride is an ionic compound. In which would it generally dissolve?
- water — correct. Yes!
- kerosene. Ionic compounds are generally insoluble in kerosene.
- petrol. Ionic compounds are generally insoluble in petrol.
- Ionic compounds generally dissolve in petrol but not in water. It is the other way round: they are generally soluble in water and insoluble in petrol.
- Ionic compounds generally dissolve in water but not in petrol — correct. Yes!
- Ionic compounds generally dissolve in both kerosene and water. They are generally insoluble in kerosene.
- Petrol. Ionic compounds are generally insoluble in petrol.
- Kerosene. Ionic compounds are generally insoluble in kerosene.
- Water — correct. Yes!