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 10
A solution contains 15 g of solute in 100 g of water at 40°C. If the solubility of the solute at 40°C is 20 g per 100 g of water, is the solution saturated, unsaturated, or supersaturated?
A student adds sugar to water until no more dissolves and some remains at the bottom. What type of solution is this?
Define a supersaturated solution.
Describe the effect of particle size on the rate of dissolution of a solute.
Explain how pressure affects the solubility of gases in liquids.
Explain why polar solutes tend to dissolve in polar solvents.
Explain why stirring increases the rate at which a solute dissolves in a solvent.
If 20 g of KNO3 dissolves in 50 g of water at 30°C, what is the solubility of KNO3 in g per 100 g of water at this temperature?
If a solution is prepared by dissolving 10 g of salt in 90 g of water, what is the concentration of salt in percentage by mass?
State Henry’s Law in relation to solubility.
State one reason why some substances are insoluble in water.
The solubility of a substance is 25 g per 100 g of water at 50°C. How much of the substance will dissolve in 250 g of water at the same temperature?
The solubility of NaCl in water at 25°C is 36 g per 100 g of water. If 72 g of NaCl is added to 200 g of water at 25°C, will all the salt dissolve?
