Study Guide for General Chemistry 120

Chapter 1

- Mixtures, pure substances, compounds, elements.

- Separation of mixtures.

- Physical and chemical properties of matter.

- Significant figures, scientific notation.

- Conversion of units, temperature scales, volume, and density.

- Dimensional analysis.

 Chapter 2

- Mass number, atomic number, isotopes, nuclide symbol.

- Names and symbol of elements and the periodic table.

- Molecules, chemical formula, structure formula.

- Ions, and polyatomic ions.

- Chemical nomenclature.

 Chapter 3

- Balancing chemical equations.

- Patterns of chemical reactivity.

- Moles and molar mass, Avogadro's number.

- Calculations based on Mole.

- Derivation of formula from combustion analysis (empirical and molecular formulas).

- Calculations based on chemical equations (stoichiometry).

- Percent yield and limiting reactant.

Chapter 4

- Aqueous solutions, concentrations.

- Molarity (M) = [# of mole] / [Volume (L)].

- Molarity (M) = [Mass (g)] / [V (L) x MW]

- Preparing solutions and dilution of solutions, (M1.V1= M2.V2)..

- Electrolytes, ionization.

- Acid-base reactions (definition of acids and bases).

- Strong acids and strong bases, neutralization reactions and salts.

- Ionic and net ionic equations.

- Oxidation-Reduction reactions and the activity series.

Chapter 5

- Energy, E = Ei – Ef, enthalpy change of reaction ( D H).

- Calorimetry and heat capacity.

- Enthalpy of reaction (Hess's law).

- Standard molar enthalpy of formation (D H° f).

Chapter 6

- Characteristic of Light (electromagnetic radiation).

- Wavelength, frequency, speed of light (c = l.u)(DE=h.n).

- Rydberg equation.

- Absorption and emission spectra.

- Quantum numbers, N, l, ml , ms.

- Shapes of molecular orbitals, S,P,...

- Election configuration and orbital energies.

Chapter 7

- Atomic and ionic radii, Ionization energy, Electron affinity, and Electronegativity.

- Lewis symbols.

- Chemical bonds: ionic and covalent bonds (bond polarity and electronegativity).

- Octet rule an Lewis structures, resonance structure.

- Formal charge and structure stability.

- Exceptions to Octet rule.

- Bond strength and length.

Chapter 9

- VSEPR theory, electronic and molecular shapes (Linear, tetrahedral,...)

- Molecular polarity (polar and non-polar molecules).

- Valence bond theory.

- Sigma ( s) and ( p ) Pi bonds(multiple bonds).

- Orbital hybridization (sp, sp2, sp3).

- Molecular orbital theory (molecular overlap).

- Molecular orbital energy-level diagrams. (bonding & anti bonding orbital)

- Bond order and Molecular electronic configuration.

Chapter 10

- Gas laws and ideal gas equation (P.V = n.R.T).

- Gas stoichiometry.

- Gas mixture: Dalton's Law Xa = Pa/Pt

- Density and MW of gases.

Chapter 11

- Intermolecular forces (ion-ion, dipole-dipole, H-bond, London)

- The effect of intermolecular forces on the properties of liquids: viscosity, surface tension, evaporation, condensation, vapor pressure, and boiling point.

- Phase diagram.

- The effect of intermolecular forces on the properties of solids: melting & freezing points, and sublimation.

- Structure of solids.

- Amorphous and crystalline solids.

- Bonding in solids, (Metallic solids, ionic solids, molecular solids, covalent solids).