Table of contents

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

3. Acids and Bases

Equilibrium Constant

Organic Chemistry

3. Acids and Bases

Equilibrium Constant

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Multiple Choice

Which side of the following acid/base reaction is favored at equilibrium?

Neither

It depends on the temperature.

Reactants

Products

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Verified step by step guidance

Identify the acids and bases on both sides of the reaction. In this reaction, H2O acts as an acid and NH3 acts as a base on the reactant side, while OH- is the conjugate base and NH4+ is the conjugate acid on the product side.

Determine the strength of the acids and bases involved. Water (H2O) is a very weak acid, and ammonia (NH3) is a weak base. The hydroxide ion (OH-) is a strong base, and the ammonium ion (NH4+) is a weak acid.

Use the concept of acid and base strength to predict the direction of the equilibrium. The equilibrium will favor the side with the weaker acid and base. Since OH- is a stronger base than NH3, and NH4+ is a weaker acid than H2O, the equilibrium will favor the reactants.

Consider the position of equilibrium in terms of the equilibrium constant (K_eq). A reaction favors the side with the weaker acid and base, which corresponds to a smaller K_eq value for the forward reaction.

Conclude that the equilibrium is favored towards the reactants side, as the weaker acid (NH4+) and weaker base (OH-) are on the product side, making the reactants more stable at equilibrium.