General Chemistry II Course Competencies
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