Lecture Description
A more concrete attempt at showing how the probabilities of molecules reacting is related to their concentration. Not necessary to keep progressing through chemistry. Created by Sal Khan.
Watch the next lesson: www.khanacademy.org/science/chemistry/chemical-equilibrium/equilibrium-constant/v/heterogenous-equilibrium?utm_source=YT&utm_medium=Desc&utm_campaign=chemistry
Missed the previous lesson? www.khanacademy.org/science/chemistry/chemical-equilibrium/equilibrium-constant/v/keq-intuition-mathy-and-not-necessary-to-progress?utm_source=YT&utm_medium=Desc&utm_campaign=chemistry
Chemistry on Khan Academy: Did you know that everything is made out of chemicals? Chemistry is the study of matter: its composition, properties, and reactivity. This material roughly covers a first-year high school or college course, and a good understanding of algebra is helpful.
Course Index
- Introduction to chemistry
- Elements and atoms | Atoms, compounds, and ions | Chemistry | Khan Academy
- Introduction to the atom | Chemistry of life | Biology | Khan Academy
- Orbitals | Electronic structure of atoms | Chemistry | Khan Academy
- More on orbitals and electron configuration | Chemistry | Khan Academy
- Electron Configurations
- Electron configurations 2 | Electronic structure of atoms | Chemistry | Khan Academy
- Noble gas configuration (old, low volume)
- Noble gas configuration | Electronic structure of atoms | Chemistry | Khan Academy
- Valence Electrons
- Groups of the Periodic Table
- Periodic Table Trends: Ionization Energy
- Other Periodic Table Trends
- Ionic, covalent, and metallic bonds | Chemical bonds | Chemistry | Khan Academy
- Molecular and Empirical Formulas
- The mole and Avogadro's number | Atoms, compounds, and ions | Chemistry | Khan Academy
- Formula from Mass Composition
- Another mass composition problem | Chemistry | Khan Academy
- Balancing Chemical Equations
- Stoichiometry | Chemical reactions and stoichiometry | Chemistry | Khan Academy
- Stoichiometry: Limiting reagent | Chemical reactions and stoichiometry | Chemistry | Khan Academy
- Ideal gas equation: PV = nRT | Chemistry | Khan Academy
- Ideal gas equation example 1 | Chemistry | Khan Academy
- Ideal gas equation example 2 | Chemistry | Khan Academy
- Ideal gas equation example 3 | Chemistry | Khan Academy
- Ideal gas equation example 4 | Chemistry | Khan Academy
- Introduction to partial pressure | Gases and kinetic molecular theory | Chemistry | Khan Academy
- Partial pressure example | Chemistry | Khan Academy
- States of matter | States of matter and intermolecular forces | Chemistry | Khan Academy
- States of matter follow-up | States of matter and intermolecular forces | Chemistry | Khan Academy
- Specific heat, heat of fusion and vaporization example | Chemistry | Khan Academy
- Chilling water problem | States of matter and intermolecular forces | Chemistry | Khan Academy
- Phase diagrams | States of matter and intermolecular forces | Chemistry | Khan Academy
- Van der Waals forces | States of matter and intermolecular forces | Chemistry | Khan Academy
- Covalent networks, metallic crystals, and ionic crystals | Chemistry | Khan Academy
- Vapor pressure | States of matter and intermolecular forces | Chemistry | Khan Academy
- Suspensions, colloids and solutions | Chemistry | Khan Academy
- Solubility and intermolecular forces | Chemistry | Khan Academy
- Boiling point elevation and freezing point depression | Chemistry | Khan Academy
- Introduction to kinetics | Energy and enzymes | Biology | Khan Academy
- Reactions in equilibrium | Chemical equilibrium | Chemistry | Khan Academy
- Group trend for ionization energy | Periodic table | Chemistry | Khan Academy
- Keq intuition | Chemical equilibrium | Chemistry | Khan Academy
- Keq derivation intuition | Chemical equilibrium | Chemistry | Khan Academy
- Heterogeneous equilibrium | Chemical equilibrium | Chemistry | Khan Academy
- Le Chatelier's principle | Chemical equilibrium | Chemistry | Khan Academy
- Introduction to pH, pOH, and pKw
- Acid Base Introduction
- pH, pOH of strong acids and bases | Chemistry | Khan Academy
- pH of a Weak Acid
- pH of a Weak Base
- Conjugate acids and bases
- pKa and pKb relationship | Acids and bases | Chemistry | Khan Academy
- Buffers and Henderson-Hasselbalch | Chemistry | Khan Academy
- Strong Acid Titration
- Buffer capacity | Buffers, titrations, and solubility equilibria | Chemistry | Khan Academy
- Weak Acid Titration
- Private video
- Titration roundup | Buffers, titrations, and solubility equilibria | Chemistry | Khan Academy
- Introduction to Oxidation States
- More on Oxidation States
- Hydrogen Peroxide Correction
- Redox Reactions
- Galvanic Cells
- Types of decay | Nuclear chemistry | Chemistry | Khan Academy
- Half-life and carbon dating | Nuclear chemistry | Chemistry | Khan Academy
- Exponential decay formula proof (can skip, involves calculus) | Chemistry | Khan Academy
- Introduction to exponential decay | Nuclear chemistry | Chemistry | Khan Academy
- More exponential decay examples | Nuclear chemistry | Chemistry | Khan Academy
- Macrostates and microstates | Thermodynamics | Physics | Khan Academy
- Quasistatic and reversible processes | Thermodynamics | Physics | Khan Academy
- First law of thermodynamics / internal energy | Thermodynamics | Physics | Khan Academy
- More on internal energy | Thermodynamics | Physics | Khan Academy
- Work from expansion | Thermodynamics | Physics | Khan Academy
- PV-diagrams and expansion work | Thermodynamics | Physics | Khan Academy
- Proof: U = (3/2)PV or U = (3/2)nRT | Thermodynamics | Physics | Khan Academy
- Work done by isothermic process | Thermodynamics | Physics | Khan Academy
- Carnot cycle and Carnot engine | Thermodynamics | Physics | Khan Academy
- Proof: Volume ratios in a carnot cycle | Thermodynamics | Physics | Khan Academy
- Proof: S (or entropy) is a valid state variable | Thermodynamics | Physics | Khan Academy
- Thermodynamic entropy definition clarification | Physics | Khan Academy
- Reconciling thermodynamic and state definitions of entropy | Physics | Khan Academy
- Entropy intuition | Thermodynamics | Physics | Khan Academy
- Maxwell's demon | Thermodynamics | Physics | Khan Academy
- More on entropy | Thermodynamics | Physics | Khan Academy
- Efficiency of a Carnot engine | Thermodynamics | Physics | Khan Academy
- Carnot efficiency 2: Reversing the cycle | Thermodynamics | Physics | Khan Academy
- Carnot efficiency 3: Proving that it is the most efficient | Physics | Khan Academy
- Enthalpy | Thermodynamics | Chemistry | Khan Academy
- Heat of formation | Thermodynamics | Chemistry | Khan Academy
- Hess's law and reaction enthalpy change | Chemistry | Khan Academy
- Gibbs free energy and spontaneity | Chemistry | Khan Academy
- Gibbs free energy example | Thermodynamics | Chemistry | Khan Academy
- More rigorous Gibbs free energy / spontaneity relationship | Chemistry | Khan Academy
- A look at a seductive but wrong Gibbs/spontaneity proof | Chemistry | Khan Academy
- Stoichiometry example problem 1 | Chemistry | Khan Academy
- Stoichiometry example problem 2 | Chemistry | Khan Academy
- Limiting reactant example problem 1 | Chemistry | Khan Academy
- Empirical and Molecular Formulas from Stoichiometry
- Example of Finding Reactant Empirical Formula
- Stoichiometry of a Reaction in Solution
- Another Stoichiometry Example in a Solution
- Molecular and Empirical Forumlas from Percent Composition
- Acid base titration example | Chemistry | Khan Academy
- Spectrophotometry introduction | Kinetics | Chemistry | Khan Academy
- Spectrophotometry example | Kinetics | Chemistry | Khan Academy
- Hess's law example | Thermodynamics | Chemistry | Khan Academy
- Vapor pressure example | Chemistry | Khan Academy
- Change of state example | States of matter and intermolecular forces | Chemistry | Khan Academy
- Small x approximation for small Kc | Chemistry | Khan Academy
- Small x approximation for large Kc | Chemical equilibrium | Chemistry | Khan Academy
- pH and pKa relationship for buffers | Chemistry | Khan Academy
- 2015 AP chemistry free response 5a
- AP Chemistry multiple choice sample: Boiling points
- Rate constant k from half-life example | Knetics | Chemistry | Khan Academy
- Ways to get a buffer solution | Chemistry | Khan Academy
- Comparing Q vs K example | Chemical equilibrium | Chemistry | Khan Academy
- Finding units of rate constant k | Knetics | Chemistry | Khan Academy
- Calculating internal energy and work example | Chemistry | Khan Academy
- Ionic bonds and Coulombs law
- Bond enthalpy and enthalpy of reaction | Chemistry | Khan Academy
- Introduction to reaction quotient Qc | Chemical equilibrium | Chemistry | Khan Academy
- Le Chatelier's principle: Worked example | Chemical equilibrium | Chemistry | Khan Academy
- Conjugate acid-base pairs | Acids and bases | Chemistry | Khan Academy
Course Description
An introductory college-level chemistry course that explores topics such as atoms, compounds, and ions; chemical reactions and stoichiometry; ideal gases; chemical equilibrium; acids and bases; kinetics; thermodynamics; redox reactions and electrochemistry; and a whole lot more!