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

16. Chemical Equilibrium

Equilibrium Constant K

General Chemistry

16. Chemical Equilibrium

Equilibrium Constant K

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Multiple Choice

What is the equilibrium chemical equation for a 0.01 M solution of sodium acetate, NaC2H3O2(aq)?

NaC2H3O2(aq) ⇌ NaC2H3O2(g)

NaC2H3O2(aq) ⇌ Na+(aq) + C2H3O2−(aq)

NaC2H3O2(aq) ⇌ NaC2H3O2(s)

NaC2H3O2(aq) ⇌ Na2C2H3O2(aq)

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Verified step by step guidance

Identify the nature of sodium acetate (NaC2H3O2) in an aqueous solution. Sodium acetate is a salt that can dissociate into its constituent ions in water.

Recognize that in an aqueous solution, sodium acetate will dissociate into sodium ions (Na+) and acetate ions (C2H3O2−). This is a common behavior for ionic compounds in water.

Write the dissociation equation for sodium acetate in water: NaC2H3O2(aq) ⇌ Na+(aq) + C2H3O2−(aq). This represents the equilibrium between the undissociated salt and its ions in solution.

Understand that the other options provided involve incorrect states or products for sodium acetate in an aqueous solution. For example, NaC2H3O2(g) suggests a gaseous state, which is not applicable here, and Na2C2H3O2(aq) suggests a different compound.

Conclude that the correct equilibrium chemical equation for a 0.01 M solution of sodium acetate is NaC2H3O2(aq) ⇌ Na+(aq) + C2H3O2−(aq), as it accurately represents the dissociation of the salt into its ions in water.