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 best explains why water dissolves most salts?

Water has a low density that facilitates salt dissolution.

Water is a polar solvent that can stabilize ions.

Water has a high boiling point that allows salts to dissolve.

Water is a nonpolar solvent that interacts with salt molecules.

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Verified step by step guidance

Understand the nature of water: Water is a polar molecule, meaning it has a partial positive charge on one side and a partial negative charge on the other side due to the difference in electronegativity between hydrogen and oxygen atoms.

Recognize the structure of salts: Salts are typically composed of positive and negative ions held together by ionic bonds. When salts dissolve in water, these ions are separated and surrounded by water molecules.

Consider the interaction between water and ions: The polar nature of water allows it to interact with the positive and negative ions of the salt. The partial negative charge of the oxygen atom in water can stabilize positive ions, while the partial positive charge of the hydrogen atoms can stabilize negative ions.

Evaluate the role of solvation: Solvation is the process of surrounding solute particles with solvent molecules. In the case of water dissolving salts, solvation involves water molecules surrounding and stabilizing the ions, which helps to keep them dissolved in solution.

Conclude why water is effective at dissolving salts: Due to its polarity, water can effectively stabilize and solvate ions, making it an excellent solvent for dissolving ionic compounds like salts.