Khan Academy , Prof.Salman Khan

Van Der Waals Forces


Lecture Description

Van Der Waals Forces: London Dispersion Forces, Dipole Attractions, and Hydrogen Bonds.

Course Description

Introduction to the atom-Orbitals – More on orbitals and electron configuration – Electron Configurations – Valence Electrons – Groups of the Periodic Table-Periodic Table Trends: Ionization Energy – Other Periodic Table Trends-Ionic, Covalent, and Metallic Bonds – Molecular and Empirical Formulas – The Mole and Avogadro’s Number – Formula from Mass Composition – Another mass composition problem – Balancing Chemical Equations – Stoichiometry – Stoichiometry: Limiting Reagent-Ideal Gas Equation: PV=nRT-Ideal Gas Equation Example 1-Partial Pressure-States of Matter

Specific Heat, Heat of Fusion and Vaporization – Chilling Water Problem – Phase Diagrams-Van Der Waals Forces – Covalent Networks, Metallic, and Ionic Crystals – Vapor Pressure-Suspensions, Colloids and Solutions -Solubility – Boiling Point Elevation and Freezing Point Supression – Introduction to Kinetics – Reactions in Equilibrium – Mini-Video on Ion Size-Keq Intuition (mathy and not necessary to progress) – Heterogenous Equilibrium -Le Chatelier’s Principle – Introduction to pH, pOH, and pKw-Acid Base Introduction-pH, pOH of Strong Acids and Bases-pH of a Weak Acid-pH of a Weak Base-Conjugate Acids and Bases – pKa and pKb Relationship – Buffers – Strong Acid Titration

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