Solubility and Factors Affecting Solubility
Chemistry ⇒ Solutions and Colloids
Solubility and Factors Affecting Solubility starts at 9 and continues till grade 12.
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See sample questions for grade 9
A carbonated drink is bottled under high pressure. What happens to the solubility of carbon dioxide gas when the bottle is opened?
A solution contains 12 g of solute in 100 g of water at 25°C. If the solubility of the solute at 25°C is 15 g per 100 g of water, is the solution saturated, unsaturated, or supersaturated?
A student adds 5 g of salt to 100 g of water and all the salt dissolves. She then adds another 10 g and it also dissolves. She adds 10 g more and some salt remains undissolved. What is the solubility of salt in water under these conditions?
A student dissolves 10 g of sugar in 100 g of water at 20°C. She then heats the solution to 40°C and finds she can dissolve 20 g more. What factor has changed the solubility?
Describe the effect of increasing surface area of a solute on its rate of dissolving.
Describe what happens when a supersaturated solution is disturbed.
Describe what is meant by the term 'miscible'.
Explain how pressure affects the solubility of gases in liquids.
Explain why increasing the pressure increases the solubility of a gas in a liquid.
Explain why oil does not dissolve in water.
Explain why sugar dissolves faster in hot tea than in cold tea.
If 20 g of a solute dissolves in 100 g of water at 30°C, what is the solubility of the solute at that temperature?
If a solution contains undissolved solute at the bottom, what type of solution is it?
State one reason why stirring increases the rate of dissolving.
The solubility of a substance is 25 g per 100 g of water at 20°C. If you add 30 g of the substance to 100 g of water at 20°C, how much will remain undissolved?
What is meant by a saturated solution?
