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

Lewis Dot Structures: Neutral Compounds

General Chemistry

11. Bonding & Molecular Structure

Lewis Dot Structures: Neutral Compounds

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Multiple Choice

After drawing the Lewis structure of CBr4, what are the electron domain geometry and molecular geometry around the central carbon atom?

Electron domain geometry: octahedral; Molecular geometry: square planar

Electron domain geometry: tetrahedral; Molecular geometry: trigonal pyramidal

Electron domain geometry: tetrahedral; Molecular geometry: tetrahedral

Electron domain geometry: trigonal planar; Molecular geometry: trigonal planar

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Verified step by step guidance

Step 1: Identify the central atom in CBr\_4, which is carbon (C), and count the number of atoms bonded to it. Carbon is bonded to four bromine (Br) atoms.

Step 2: Draw the Lewis structure for CBr\_4. Carbon has 4 valence electrons and each bromine has 7 valence electrons. Carbon forms four single bonds with four bromine atoms, using all four of its valence electrons.

Step 3: Determine the number of electron domains around the central carbon atom. Each single bond counts as one electron domain, so there are 4 electron domains around carbon.

Step 4: Use the VSEPR theory to predict the electron domain geometry. Four electron domains around a central atom arrange themselves in a tetrahedral geometry to minimize repulsion.

Step 5: Since all four electron domains are bonding pairs (no lone pairs on carbon), the molecular geometry is the same as the electron domain geometry, which is tetrahedral.