Table of contents

1. Intro to General Chemistry3h 48m
2. Atoms & Elements4h 16m
3. Chemical Reactions4h 10m
4. BONUS: Lab Techniques and Procedures1h 38m
5. BONUS: Mathematical Operations and Functions48m
6. Chemical Quantities & Aqueous Reactions3h 53m
7. Gases3h 49m
8. Thermochemistry2h 37m
9. Quantum Mechanics2h 58m
10. Periodic Properties of the Elements3h 9m
11. Bonding & Molecular Structure3h 29m
12. Molecular Shapes & Valence Bond Theory1h 57m
13. Liquids, Solids & Intermolecular Forces2h 23m
14. Solutions3h 1m
15. Chemical Kinetics2h 53m
16. Chemical Equilibrium2h 29m
17. Acid and Base Equilibrium5h 1m
18. Aqueous Equilibrium4h 47m
19. Chemical Thermodynamics1h 50m
20. Electrochemistry2h 42m
21. Nuclear Chemistry2h 36m
22. Organic Chemistry5h 7m
23. Chemistry of the Nonmetals2h 39m
24. Transition Metals and Coordination Compounds3h 16m

6. Chemical Quantities & Aqueous Reactions

Solubility Rules

General Chemistry

6. Chemical Quantities & Aqueous Reactions

Solubility Rules

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Multiple Choice

A solution is saturated in both nitrogen gas and potassium bromide at 75°C. When the solution is cooled to room temperature, what is most likely to happen?

Some potassium bromide precipitates out of solution.

Both nitrogen gas and potassium bromide precipitate out of solution.

Both nitrogen gas and potassium bromide remain dissolved.

Some nitrogen gas bubbles out of solution.

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Verified step by step guidance

Understand the concept of saturation: A saturated solution contains the maximum amount of solute that can dissolve at a given temperature. If the temperature changes, the solubility of the solute can change as well.

Consider the effect of temperature on solubility: Generally, the solubility of solids like potassium bromide increases with temperature, while the solubility of gases like nitrogen decreases with temperature.

Analyze the cooling process: When the solution is cooled from 75°C to room temperature, the solubility of potassium bromide decreases, which may lead to precipitation if the solution was initially saturated.

Consider the behavior of nitrogen gas: As the temperature decreases, the solubility of nitrogen gas in the solution decreases, which can cause the gas to escape from the solution as bubbles.

Conclude the likely outcomes: Based on the changes in solubility with temperature, it is likely that some potassium bromide will precipitate out of the solution, and some nitrogen gas may bubble out of the solution.