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

Which of the following solvents would be best to dissolve pentane?

Acetone

Ethanol

Hexane

Water

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Verified step by step guidance

Step 1: Understand the principle 'like dissolves like,' which means that solvents tend to dissolve solutes with similar polarity. Nonpolar solutes dissolve best in nonpolar solvents, and polar solutes dissolve best in polar solvents.

Step 2: Identify the polarity of pentane. Pentane is a hydrocarbon and is nonpolar because it consists mainly of C-H bonds, which have very little difference in electronegativity.

Step 3: Analyze the polarity of the given solvents: Acetone is polar aprotic, Ethanol is polar protic, Water is highly polar protic, and Hexane is nonpolar.

Step 4: Compare the polarity of pentane with each solvent. Since pentane is nonpolar, it will dissolve best in a nonpolar solvent, which is hexane in this list.

Step 5: Conclude that hexane is the best solvent to dissolve pentane because both are nonpolar, allowing for stronger intermolecular interactions and better solubility.