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Organic Chemistry Exam Study Guide: Key Concepts and Practice Guidance

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Lewis Structure

  • Drawing the Lewis Structure for N2H4.
    04:12
  • How to use Organic Chemistry to make Lewis Structures easier.
    03:49

Formal Charges

  • Calculate the formal charges of ALL atoms.
    02:21
  • Calculating formal and net charge.
    01:34

Electronegativity

  • Differences between ionic, polar and covalent bonds
    11:33

Resonance Structures

  • How to draw a resonance hybrid.
    03:24
  • The rules you need for resonance:
    03:34
  • How to determine which structure is most stable.
    01:32

Hybridization

  • How carbon creates 4 partially-filled orbitals.
    02:53
  • Bond sites, hybridization, and intermediate orbitals
    04:58
  • Introduction to the reactive intermediates.
    02:47

Molecular Geometry

  • Predict the hybridization and molecular geometry
    01:54
  • Molecular Geometry Explained.
    07:44

Intermolecular Forces

  • How dipole-dipole forces work.
    01:46
  • How IMFs are related to melting and boiling points.
    03:08
  • How Van der Waals forces work.
    03:01

Common Substituents

  • Name the following alkane
    02:33
  • Understanding Non-IUPAC Substituents
    06:42
  • Name the following alkane
    03:56

Newman Projections – Conformational Energy

  • How to draw a Newman Projection Energy Diagram.
    07:27
  • How sigma bond rotation is visualized
    03:11
  • The energy states of 3 different Newman Projections.
    03:51

Chair Flip

  • The 3 important factors when drawing chairs
    05:12

Acid and Base Definitions

  • Lewis vs. Bronsted-Lowry Definition
    07:46
  • The Bronsted-Lowry definition of acids and bases.
    00:54
  • Equilibrium constant and conjugates.
    02:11

Equilibrium Constant and pKa

  • The pH scale vs. the pKa scale.
    02:15
  • The relationship between equilibrium constant and pKa.
    02:19
  • Why we use pKa instead of pH.
    01:46

pKa Values

  • Identifying pKa values
    07:45
  • The 12 pKa values you want to memorize (because they are important!).
    09:36

Factors Affecting Acidity

  • Which of the oxides is the most basic?
    00:30
  • The 3 factors that determine the strength of inductive effects.
    03:09
  • Using Inductive Effect to determine acidity
    01:54