Table of contents

1. Intro to General Chemistry3h 46m
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 51m
7. Gases3h 52m
8. Thermochemistry2h 38m
9. Quantum Mechanics2h 58m
10. Periodic Properties of the Elements3h 10m
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 34m
22. Organic Chemistry5h 7m
23. Chemistry of the Nonmetals2h 39m
24. Transition Metals and Coordination Compounds3h 16m

11. Bonding & Molecular Structure

Lewis Dot Structures: Acids

General Chemistry

11. Bonding & Molecular Structure

Lewis Dot Structures: Acids

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Multiple Choice

Determine the Lewis Dot Structure for hydrocyanic acid:HCN

Lewis Dot Structure for hydrocyanic acid (HCN) showing bonds and lone pairs.

Alternative Lewis Dot Structure for hydrocyanic acid (HCN) with different bond representation.

Another representation of the Lewis Dot Structure for hydrocyanic acid (HCN) with bonds and lone pairs.

Different Lewis Dot Structure for hydrocyanic acid (HCN) illustrating bond types and lone pairs.

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Verified step by step guidance

Identify the total number of valence electrons in the molecule. Hydrogen (H) has 1 valence electron, carbon (C) has 4, and nitrogen (N) has 5, giving a total of 10 valence electrons.

Determine the central atom. In HCN, carbon is the central atom because it can form more bonds compared to hydrogen and nitrogen.

Arrange the atoms with carbon in the center, hydrogen on one side, and nitrogen on the other. Connect hydrogen to carbon with a single bond and carbon to nitrogen with a triple bond.

Distribute the remaining valence electrons to satisfy the octet rule. Hydrogen is satisfied with 2 electrons, carbon with 8, and nitrogen with 8.

Verify the structure by counting the electrons around each atom to ensure that the total number of valence electrons used equals the number calculated in step 1, and that each atom satisfies the octet rule (except hydrogen, which follows the duet rule).