JAMB and WAEC Chemistry questions: Solubility

36 questions with answers and explanations. Tap an option to check yourself.

All topics Acids, bases and salts · 58 Air · 37 Atomic structure and bonding · 59 Chemical combination · 58 Chemical equilibrium · 37 Chemistry and industry · 35 Electrolysis · 41 Energy changes · 38 Environmental pollution · 32 Kinetic theory of matter and gas laws · 45 Metals and their compounds · 47 Non-metals and their compounds · 45 Organic compounds · 72 Oxidation and reduction · 41 Rates of chemical reaction · 38 Separation of mixtures and purification · 42 Solubility · 36 Water · 39

Question 21· Solubility· JAMB
Milk is an example of
Explanation and discussion
Question 22· Solubility· WAEC
A solution containing more solute than it can normally hold at that temperature is
Explanation and discussion
Question 23· Solubility· JAMB
As the temperature of water rises, the solubility of most gases in it
Explanation and discussion
Question 24· Solubility· JAMB
A solution holding more solute than it normally can at that temperature is
Explanation and discussion
Question 25· Solubility· WAEC
A solubility curve shows
Explanation and discussion
Question 26· Solubility· JAMB
A solution that contains more solute than it can normally hold at that temperature is
Explanation and discussion
Question 27· Solubility· JAMB
Fizzy drinks are bottled under pressure because
Explanation and discussion
Question 28· Solubility· JAMB
For most solid solutes, solubility in water
Explanation and discussion
Question 29· Solubility· JAMB
The solubility of potassium trioxonitrate(V) is 80 g per 100 g of water at 50 °C and 40 g per 100 g at 20 °C. What mass crystallises when a saturated solution containing 200 g of water is cooled from 50 °C to 20 °C?
Explanation and discussion
Question 30· Solubility· WAEC
The solubility of a salt is 36 g per 100 g of water at 25 °C. What mass of it dissolves in 250 g of water at that temperature?
Explanation and discussion
Question 31· Solubility· JAMB
7.45 g of potassium chloride is dissolved in water to make 100 cm³ of solution. Find its concentration. (K = 39, Cl = 35.5)
Explanation and discussion
Question 32· Solubility· JAMB
The solubility of potassium trioxonitrate(V) at 30 °C is 45 g per 100 g of water. What mass will saturate 250 g of water at 30 °C?
Explanation and discussion
Question 33· Solubility· WAEC
20 g of a salt dissolves in 50 g of water at 30 °C. Its solubility at 30 °C, in grams per 100 g of water, is
Explanation and discussion
Question 34· Solubility· JAMB
Fractional crystallisation separates two salts by making use of differences in their
Explanation and discussion
Question 35· Solubility· JAMB
The solubility of KNO₃ is 60 g per 100 g of water at 40 °C and 30 g per 100 g at 20 °C. What mass of crystals forms when 160 g of saturated solution at 40 °C is cooled to 20 °C?
Explanation and discussion
Question 36· Solubility· JAMB
A saturated solution is one that:
Explanation and discussion

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JAMB and WAEC Chemistry questions: Solubility

Milk is an example of

A solution containing more solute than it can normally hold at that temperature is

As the temperature of water rises, the solubility of most gases in it

A solution holding more solute than it normally can at that temperature is

A solubility curve shows

A solution that contains more solute than it can normally hold at that temperature is

Fizzy drinks are bottled under pressure because

For most solid solutes, solubility in water

The solubility of potassium trioxonitrate(V) is 80 g per 100 g of water at 50 °C and 40 g per 100 g at 20 °C. What mass crystallises when a saturated solution containing 200 g of water is cooled from 50 °C to 20 °C?

The solubility of a salt is 36 g per 100 g of water at 25 °C. What mass of it dissolves in 250 g of water at that temperature?

7.45 g of potassium chloride is dissolved in water to make 100 cm³ of solution. Find its concentration. (K = 39, Cl = 35.5)

The solubility of potassium trioxonitrate(V) at 30 °C is 45 g per 100 g of water. What mass will saturate 250 g of water at 30 °C?

20 g of a salt dissolves in 50 g of water at 30 °C. Its solubility at 30 °C, in grams per 100 g of water, is

Fractional crystallisation separates two salts by making use of differences in their

The solubility of KNO₃ is 60 g per 100 g of water at 40 °C and 30 g per 100 g at 20 °C. What mass of crystals forms when 160 g of saturated solution at 40 °C is cooled to 20 °C?

A saturated solution is one that: