Lessson 1:  General Chemistry I Review I

• Electronegativity, charge distribution, and molecular bonding structure
• Demonstrate an understanding of electronegativity; understand and be able to clearly explain the basis for electronegativity trends in terms of fundamental laws of electrostatic interactions (Coulomb’s Law).
• Understand how to use relative electronegativities of atoms to clearly depict charge distribution across chemical bonds.  Be able to quickly predict partial charges on atoms within given molecules.
• Draw molecular structures showing all bonds from a given molecular representation
• Noncovalent interactions and intermolecular forces
• Understand and be able to clearly discuss and diagram the basis for attractions between molecules/ions to include ion hydration, hydrogen bonding, London dispersion, dipole-dipole, ion-dipole, and cation-p electron  interactions.
• Understand and use the relative magnitude (in kJ/mole) of chemical bonds (e.g. ionic, covalent and metallic) vs intermolecular forces (hydrogen bonding, London dispersion, dipole/dipole) interactions.
• Quickly draw diagrams that clearly show appropriate partial charges and intermolecular interactions among a given set of molecules or ions.
• Predict points of potential H-bond donors and acceptors for any given molecular structure.
• Predict and discuss relative boiling points (also vapor pressure, melting points, viscosity, surface tension) from molecular structure
• Solubility and hydrophilic/hydrophobic substances
• Understand the difference and be able to predict relative polarities and solubilities (hydrophilic/hydrophobic, lipophilic/lipophobic) of a given molecular structure
• Understand and clearly explain the basis for the structure of surfactants and soap molecules
• Understand and describe the basis for micelle formation and action
• Understand what is meant by the octanol-water partition coefficient and clearly describe its significance (P and log P)
• Distribution of molecular kinetic energies
• Calculate fractions of molecules having kinetic energies greater than a given energy at a given temperature
• Graphically represent and be able to clearly explain the distribution of kinetic energies of a collection of molecules at various temperatures
• Understand kinetic energy conversion into potential energy to separate molecules, to break bonds, or to react molecules