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

14. Solutions

Boiling Point Elevation

General Chemistry

14. Solutions

Boiling Point Elevation

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Multiple Choice

Which of the following substances would you predict to have a higher boiling point, and why?

Oxygen (O2) due to its diatomic nature

Water (H2O) due to hydrogen bonding

Methane (CH4) due to its nonpolar nature

Carbon dioxide (CO2) due to its linear structure

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Verified step by step guidance

Identify the types of intermolecular forces present in each substance: Water (H2O) has hydrogen bonding, a strong intermolecular force. Oxygen (O2), Methane (CH4), and Carbon dioxide (CO2) primarily exhibit London dispersion forces, which are weaker.

Understand that substances with stronger intermolecular forces generally have higher boiling points because more energy is required to break these forces during the phase transition from liquid to gas.

Compare the molecular structures: Water (H2O) is a polar molecule with hydrogen bonds, while Methane (CH4) and Carbon dioxide (CO2) are nonpolar and rely on weaker dispersion forces. Oxygen (O2) is also nonpolar and diatomic, relying on dispersion forces.

Recognize that hydrogen bonding in water significantly increases its boiling point compared to the other substances, which only have dispersion forces.

Conclude that Water (H2O) has the highest boiling point among the given substances due to the presence of hydrogen bonding, which is stronger than the dispersion forces present in O2, CH4, and CO2.