Table of contents

1. Matter and Measurements4h 31m
2. Atoms and the Periodic Table5h 23m
3. Ionic Compounds2h 18m
4. Molecular Compounds2h 18m
5. Classification & Balancing of Chemical Reactions3h 17m
6. Chemical Reactions & Quantities2h 27m
7. Energy, Rate and Equilibrium3h 46m
8. Gases, Liquids and Solids3h 25m
9. Solutions4h 10m
10. Acids and Bases3h 29m
11. Nuclear Chemistry56m
BONUS: Lab Techniques and Procedures1h 38m
BONUS: Mathematical Operations and Functions47m
12. Introduction to Organic Chemistry1h 34m
13. Alkenes, Alkynes, and Aromatic Compounds2h 12m
14. Compounds with Oxygen or Sulfur1h 6m
15. Aldehydes and Ketones1h 1m
16. Carboxylic Acids and Their Derivatives1h 11m
17. Amines39m
18. Amino Acids and Proteins1h 51m
19. Enzymes1h 37m
20. Carbohydrates1h 41m
21. The Generation of Biochemical Energy2h 8m
22. Carbohydrate Metabolism2h 22m
23. Lipids2h 26m
24. Lipid Metabolism1h 45m
25. Protein and Amino Acid Metabolism1h 37m
26. Nucleic Acids and Protein Synthesis2h 54m

10. Acids and Bases

Acid and Base Strength

GOB Chemistry

10. Acids and Bases

Acid and Base Strength

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Multiple Choice

Which of the following is the strongest base?

NO₃^–

F^–

Cl^–

ClO₄^–

H₂O

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Verified step by step guidance

Understand the concept of basicity: A base is a substance that can accept protons (H+ ions) or donate electron pairs. The strength of a base is determined by its ability to accept protons or donate electrons.

Consider the chemical nature of each species: Analyze the given ions and molecules to determine their ability to act as bases. For example, fluoride ion (F–) is known for its high electronegativity and ability to accept protons.

Evaluate the stability of the conjugate acids: The stronger the base, the weaker its conjugate acid. For instance, HF (the conjugate acid of F–) is a weak acid, indicating that F– is a strong base.

Compare the electronegativity and size: Generally, smaller ions with higher electronegativity are stronger bases because they can hold onto electrons more tightly. F– is smaller and more electronegative compared to Cl–, ClO4–, and NO3–.

Consider the molecular structure and resonance: Some ions, like ClO4– and NO3–, have resonance structures that stabilize the negative charge, making them less likely to act as strong bases compared to F–, which does not have resonance stabilization.