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

4. Molecular Compounds

Dipole Moment (Simplified)

GOB Chemistry

4. Molecular Compounds

Dipole Moment (Simplified)

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Multiple Choice

Arrange the following molecules in order of decreasing dipole moment.
H–I H–F H–Br H–Cl

H–Cl >H–I > H–Br > H–F

H–Br >H–Cl > H–F > H–I

H–F >H–Cl > H–Br > H–I

H–I >H–Cl > H–Br > H–F

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Verified step by step guidance

Understand that the dipole moment of a molecule is determined by the difference in electronegativity between the atoms and the distance between them. The greater the difference in electronegativity, the larger the dipole moment.

Identify the electronegativities of the halogens involved: Fluorine (F) is the most electronegative, followed by Chlorine (Cl), Bromine (Br), and Iodine (I).

Recognize that the hydrogen-halogen bond with the greatest difference in electronegativity will have the largest dipole moment. Therefore, H-F will have the largest dipole moment because fluorine is the most electronegative.

Compare the remaining molecules: H-Cl, H-Br, and H-I. Since chlorine is more electronegative than bromine and iodine, H-Cl will have a larger dipole moment than H-Br and H-I.

Conclude the order of decreasing dipole moment based on electronegativity differences: H-F > H-Cl > H-Br > H-I.