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

Hexane, a nonpolar solvent, will dissolve which of the following substances?

Iodine (I2)

Potassium nitrate (KNO3)

Sucrose (C12H22O11)

Sodium chloride (NaCl)

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Verified step by step guidance

Understand the principle of 'like dissolves like,' which means that solvents tend to dissolve solutes with similar polarity. Nonpolar solvents dissolve nonpolar substances, while polar solvents dissolve polar or ionic substances.

Identify the polarity of hexane, which is a nonpolar solvent due to its long hydrocarbon chain and lack of significant electronegative atoms.

Examine the polarity of each solute: Iodine (I2) is a nonpolar molecule because it consists of two identical atoms sharing electrons equally; Potassium nitrate (KNO3) and Sodium chloride (NaCl) are ionic compounds, which are highly polar; Sucrose (C12H22O11) is a polar molecule due to many hydroxyl (-OH) groups.

Apply the 'like dissolves like' rule: since hexane is nonpolar, it will dissolve nonpolar substances like iodine (I2) but not polar or ionic substances such as KNO3, NaCl, or sucrose.

Conclude that iodine (I2) will dissolve in hexane, while potassium nitrate, sucrose, and sodium chloride will not, because their polar or ionic nature makes them insoluble in a nonpolar solvent like hexane.