CHEM 142 Lecture Notes - Lecture 4: Bond-Dissociation Energy, Hydrogen Bond, Structural Formula

• School: Emory University
• Department: Chemistry
• Course: CHEM 142
• Professor: Mulford Douglas

Document Summary

Much of last semester was devoted to discussing atoms and how they can bond in various ways to form molecules or compounds. We began to explore how molecules interact through reactions (like redox and precipitation reactions). What we have yet to discuss is how molecules can interact without reacting. As chemists, we are always interested in how we can explain data we collect or phenomena we experience. Perhaps the most glaring evidence of interactions between molecules is the presence of solid, liquid, and gas phases of matter. Learning goals: compare and explain the energies for covalent and ionic bond breaking with the energies for overcoming intermolecular forces (imfs), use your understanding of molecular shape and polarity to predict and explain which. Each space has a hypothetical beaker to contain your compound in various phases. You can use a molecule of your choice or just use a simple particulate (sphere) representation.