Which is the best Lewis structure for acetic acid, CH 3 COOH?

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1. A Review of General Chemistry5h 5m
2. Molecular Representations1h 14m
3. Acids and Bases2h 46m
4. Alkanes and Cycloalkanes4h 17m
5. Chirality3h 39m
6. Thermodynamics and Kinetics1h 22m
7. Substitution Reactions1h 48m
8. Elimination Reactions2h 30m
9. Alkenes and Alkynes2h 9m
10. Addition Reactions3h 19m
11. Radical Reactions1h 58m
12. Alcohols, Ethers, Epoxides and Thiols2h 42m
13. Alcohols and Carbonyl Compounds2h 17m
14. Synthetic Techniques1h 26m
15. Analytical Techniques:IR, NMR, Mass Spect7h 3m
16. Conjugated Systems6h 13m
17. Ultraviolet Spectroscopy51m
18. Aromaticity2h 34m
19. Reactions of Aromatics: EAS and Beyond5h 1m
20. Phenols55m
21. Aldehydes and Ketones: Nucleophilic Addition4h 56m
22. Carboxylic Acid Derivatives: NAS2h 51m
23. The Chemistry of Thioesters, Phophate Ester and Phosphate Anhydrides1h 10m
24. Enolate Chemistry: Reactions at the Alpha-Carbon1h 53m
25. Condensation Chemistry2h 9m
26. Amines1h 43m
27. Heterocycles2h 0m
28. Carbohydrates5h 53m
29. Amino Acids4h 20m
30. Peptides and Proteins2h 42m
31. Catalysis in Organic Reactions1h 30m
32. Lipids 2h 50m
33. The Organic Chemistry of Metabolic Pathways2h 52m
34. Nucleic Acids1h 32m
35. Transition Metals6h 14m
36. Synthetic Polymers1h 49m

1. A Review of General Chemistry

Lewis Structure

Organic Chemistry

1. A Review of General Chemistry

Lewis Structure

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Multiple Choice

Which is the best Lewis structure for acetic acid, CH₃COOH?

The figure illustrates a Lewis structure. H, single bond, C, single bond, C, single bond, O superscript minus. C 1 is single bonded to H above and H below. C 2 is single bonded to a second O superscript minus ion above and H below. Each O superscript minus ion has 3 lone pairs of electrons.

The figure illustrates a Lewis structure. H, single bond, C, single bond, C, single bond, O, single bond, H. C 1 is single bonded to H above and H below. C 2 is double bonded to a second O above. Each O atom has 2 lone pairs of electrons.

The figure illustrates a Lewis structure. H, single bond, C, single bond, C, single bond, O, single bond, H. C 1 is single bonded to H above and H below. O has 2 lone pairs of electrons. C 2 carries a positive charge and is single bonded to O superscript minus above. O superscript minus has 3 lone pairs of electrons.

The figure illustrates a Lewis structure. H, single bond, C, single bond, C, double bond, O, single bond, O, single bond, H. C 1 is single bonded to H above and H below. The first O atom has 1 lone pair of electrons and carries a positive charge. The second O atom has 2 lone pairs of electrons.

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Verified step by step guidance

Identify the molecular formula of acetic acid, which is CH3COOH.

Determine the total number of valence electrons. Carbon has 4 valence electrons, hydrogen has 1, and oxygen has 6. Calculate the total: 2 carbons (2x4) + 4 hydrogens (4x1) + 2 oxygens (2x6) = 24 valence electrons.

Construct the skeleton structure. Connect the atoms with single bonds: CH3 group bonded to a carbonyl group (C=O) and an OH group.

Distribute the remaining valence electrons to satisfy the octet rule. Start by completing the octets of the outer atoms (oxygen atoms) and then the central carbon atom.

Check the formal charges on each atom. The best Lewis structure will have the lowest possible formal charges, ideally zero, and the negative charge, if any, should reside on the most electronegative atom.