CHEM 1A03 Lecture Notes - Lecture 8: Inert Gas, Hydrophile, Equilibrium Constant

• School: McMaster University
• Department: Chemistry
• Course: CHEM 1A03
• Professor: David Brock

Document Summary

Polar: solvolyze ions (ex na) and allows them to be transported across cellular membrane. Polar: determine what molecules accumulate within an organism and what passes through. Folding of protein: hydrophilic and phobic aa interact with water and one another = protein arrangements with specialized functions. Only non-metallic substance that expands when frozen = lower packing density. High heat capacity: absorb, store and release large amounts of heat = great insulator. Can dissolve solutes as a solvent: strong solvation properties for most polar ions. Extreme dipole moment in the molecule (lone pair on o + positively charged hydrogen atoms) Hydrogen bonding is the strongest bond & water can make 4 hydrogen bonds. Energy released when the strong dipole in water interacts with ions in solution, or with other strong dipoles in other molecules. Ex: when gas-phase ions are surrounded by water.