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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

17. Acid and Base Equilibrium

pH of Strong Acids and Bases

General Chemistry

17. Acid and Base Equilibrium

pH of Strong Acids and Bases

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Multiple Choice

Rank the following 0.100 M aqueous solutions in order of increasing pH (lowest to highest): NaOH, CH3COOH, HNO3, HClO2, CH3NH2.

HNO3 < HClO2 < CH3COOH < CH3NH2 < NaOH

HClO2 < CH3COOH < CH3NH2 < HNO3 < NaOH

HClO2 < HNO3 < CH3COOH < NaOH < CH3NH2

HNO3 < CH3COOH < HClO2 < CH3NH2 < NaOH

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Verified step by step guidance

Identify the nature of each compound: NaOH is a strong base, CH3COOH is a weak acid, HNO3 is a strong acid, HClO2 is a weak acid, and CH3NH2 is a weak base.

Understand that strong acids and bases dissociate completely in water, while weak acids and bases do not. This affects the pH of the solution.

Rank the strong acids and bases first: HNO3 (strong acid) will have the lowest pH, and NaOH (strong base) will have the highest pH.

Compare the weak acids: HClO2 and CH3COOH. Use their acid dissociation constants (Ka) to determine their relative strengths. The acid with the higher Ka value is stronger and will have a lower pH.

Consider the weak base CH3NH2. It will have a higher pH than the weak acids but lower than the strong base NaOH. Arrange the solutions in order of increasing pH based on these observations.