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

13. Liquids, Solids & Intermolecular Forces

Molecular Polarity

General Chemistry

13. Liquids, Solids & Intermolecular Forces

Molecular Polarity

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Multiple Choice

Is a molecule of hydrogen chloride (HCl) polar or nonpolar?

Nonpolar

Neither polar nor nonpolar

Polar

Ionic

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Verified step by step guidance

Step 1: Understand the concept of molecular polarity. A molecule is polar if it has a net dipole moment, which occurs when there is an uneven distribution of electron density due to differences in electronegativity between atoms and the molecular geometry does not cancel out these dipoles.

Step 2: Identify the atoms in hydrogen chloride (HCl). It consists of hydrogen (H) and chlorine (Cl) atoms bonded together by a single covalent bond.

Step 3: Compare the electronegativities of hydrogen and chlorine. Chlorine is significantly more electronegative than hydrogen, meaning it attracts the shared electrons in the bond more strongly.

Step 4: Determine the bond polarity. Because of the difference in electronegativity, the H–Cl bond is polar, with a partial negative charge (δ-) on chlorine and a partial positive charge (δ+) on hydrogen.

Step 5: Assess the molecular polarity. Since HCl is a diatomic molecule with only one bond, the bond polarity directly results in the molecule being polar overall.