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

Which of the following best describes the polarity of a nitrogen molecule (N_2)?

N_2 is a polar molecule because nitrogen is highly electronegative.

N_2 is a polar molecule due to its linear shape.

N_2 is a nonpolar molecule because it consists of two identical atoms sharing electrons equally.

N_2 is a nonpolar molecule because it contains a lone pair of electrons.

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Verified step by step guidance

Step 1: Understand the concept of molecular polarity, which depends on the difference in electronegativity between atoms and the molecular geometry. A molecule is polar if it has a net dipole moment due to uneven electron distribution.

Step 2: Analyze the nitrogen molecule (N\_2), which consists of two identical nitrogen atoms bonded together. Since both atoms are the same, they have the same electronegativity.

Step 3: Because the two nitrogen atoms have identical electronegativity, the electrons in the N\_2 bond are shared equally, resulting in no partial charges on either atom.

Step 4: Consider the shape of the molecule. N\_2 is a diatomic molecule with a linear shape, but since the atoms are identical, the shape does not create any dipole moment.

Step 5: Conclude that N\_2 is a nonpolar molecule because it consists of two identical atoms sharing electrons equally, leading to no net dipole moment.