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

9. Quantum Mechanics

Introduction to Quantum Mechanics

General Chemistry

9. Quantum Mechanics

Introduction to Quantum Mechanics

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Multiple Choice

Which of the following is false concerning orbitals?

An electron's position is described in terms of a probability distribution map.

It is not possible to specify the energy of an electron in an orbital precisely.

When an orbital is represented pictorially, the probability of finding an electron at any point on the surface is the same.

A plot of the wave function squared (ψ²) represents an orbital.

None of the above is false.

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Verified step by step guidance

Step 1: Understand the concept of orbitals. Orbitals are regions in an atom where there is a high probability of finding electrons. They are described by wave functions, which are solutions to the Schrödinger equation.

Step 2: Analyze the statement about probability distribution maps. Electrons are described in terms of probability distribution maps, which indicate where an electron is likely to be found around the nucleus.

Step 3: Consider the statement about specifying the energy of an electron. In quantum mechanics, the energy of an electron in an orbital can be specified precisely, contrary to the statement provided.

Step 4: Evaluate the statement about pictorial representation of orbitals. When orbitals are represented pictorially, the surface represents regions of equal probability density, but the probability of finding an electron at any point on the surface is not necessarily the same.

Step 5: Examine the statement about the wave function squared (ψ²). The square of the wave function, ψ², represents the probability density of finding an electron in a particular region of space, which is consistent with the definition of an orbital.