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

11. Bonding & Molecular Structure

Lattice Energy

General Chemistry

11. Bonding & Molecular Structure

Lattice Energy

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Multiple Choice

Which of the following compounds would you expect to have the highest boiling point?

MgCl₂

SrO

SrCl₂

CsI

LiBr

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Verified step by step guidance

Step 1: Understand that boiling point is influenced by the strength of intermolecular forces. Ionic compounds typically have high boiling points due to strong ionic bonds.

Step 2: Consider the lattice energy, which is the energy required to separate one mole of a solid ionic compound into gaseous ions. Lattice energy is generally higher for compounds with smaller ions and higher charges.

Step 3: Compare the ionic charges and sizes of the given compounds. MgCl2, SrO, SrCl2, CsI, and LiBr all consist of ions with different charges and sizes.

Step 4: Analyze the charges: MgCl2 has Mg²⁺ and Cl^-, SrO has Sr²⁺ and O^2-, SrCl2 has Sr²⁺ and Cl^-, CsI has Cs⁺ and I^-, and LiBr has Li⁺ and Br^-. Higher charges typically lead to higher lattice energy.

Step 5: Consider the ionic sizes: Smaller ions lead to higher lattice energy. Compare the sizes of the ions in each compound to determine which has the highest lattice energy, and thus the highest boiling point.