Grade 12 Chemistry: Solubility Worksheet
This worksheet covers key concepts in solubility for Grade 12 Chemistry students, including factors affecting solubility, types of solutions, and solubility calculations.
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Grade 12 Chemistry: Solubility
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Read each question carefully and answer to the best of your ability. Show all work for calculations.
1. Which of the following factors generally increases the solubility of a gas in a liquid?
Increasing temperature
Decreasing pressure
Increasing pressure
Increasing surface area
2. Which of the following terms describes a solution that contains the maximum amount of solute that can be dissolved at a given temperature?
Unsaturated
Saturated
Supersaturated
Dilute
3. The principle 'like dissolves like' states that polar solvents dissolve polar solutes, and nonpolar solvents dissolve solutes.
4. The solubility of most solid solutes in liquid solvents generally as temperature increases.
5. A solution that is supersaturated is unstable and can easily precipitate excess solute.
True
False
6. Henry's Law describes the relationship between the solubility of a gas and its partial pressure above the liquid.
True
False
7. Explain why oil and water do not mix, relating your answer to the concept of polarity.
8. Describe the effect of increasing temperature on the solubility of most ionic compounds in water. Provide an explanation for this trend.
9. A solubility curve shows that 50 g of KNO₃ can dissolve in 100 g of water at 30°C. If you have 200 g of water at 30°C and add 75 g of KNO₃, will the solution be unsaturated, saturated, or supersaturated? Explain your reasoning.
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