Introduction to the Atom
Summary
Orbitals and Electrons
Summary
Periodic table, trends, and bonding
Summary
Chemical reactions (stoichiometry)
Summary
Ideal gas laws
Summary
States of matter
Summary
Reaction rates
Summary
Acids and bases
Summary
Oxidation reduction
Summary
Radioactive decay
Summary
Elements and Atoms
How elements relate to atoms. The basics of how protons, electrons and neutrons make up an atom.
Introduction to the atom
The atom, proton, neutron and electron
Orbitals
An introduction to orbitals
More on orbitals and electron configuration
More intuition on orbitals. Touching on electron configuration.
Electron configurations
Introduction to using the periodic table to determine electron configurations
Electron configurations 2
Figuring out configurations for the d-block elements
Valence Electrons
Looking at valence electrons to figure out reactivity
Groups of the Periodic Table
Properties of alkali, alkaline earth and transition metals. Halogens and noble gases.
Valence Electrons
Looking at valence electrons to figure out reactivity
Periodic Table Trends: Ionization Energy
What an ion is. Using the periodic table to understand how difficult it is to ionize an atom.
Other Periodic Table Trends
Electronegativity, metallic nature and atomic radius.
Ionic, Covalent, and Metallic Bonds
Introduction to ionic, covalent, polar covalent and metallic bonds.
Molecular and Empirical Formulas
Introduction to molecular and empirical formulas. Calculating molecular mass.
The mole and avogadro's number
Introduction to the idea of a mole as a number (vs. an animal).
Formula from mass composition
Figuring out the empirical formula from a molecules mass composition.
Another mass composition problem
Another exercise converting a mass composition to an empirical formula.
Balancing chemical equations
The art of balancing equations in chemistry!
Stoichiometry
Introduction to stoichiometry.
Stoichiometry example problem 1
Figuring grams of reactants and product produced from reaction of phosphorous and chlorine.
Stoichiometry Example Problem 2
Summary
Stoichiometry: Limiting reagent
Stoichiometry problem where we have a limiting reagent!
Limiting reactant example problem 1
Limiting Reactant Example Problem 1
Spectrophotometry Introduction
Spectrophotometry, Transmittance, Absorbance and the Beer-Lambert Law
Spectrophotometry Example
Spectrophotometry Example - Determining concentration based on absorbance
Ideal Gas Equation: PV=nRT
Intuition behind the ideal gas equation: PV=nRT.
Ideal Gas Equation Example 1
Figuring out the number of moles of gas we have using the ideal gas equation: PV=nRT.
Ideal Gas Equation Example 2
PV/T is a constant. Figuring out the volume of an ideal gas at standard temperature and pressure (STP).
Ideal Gas Equation Example 3
Figuring out the mass of Oxygen we have.
Ideal Gas Equation Example 4
Figuring out the molar mass of a mystery molecule at STP.
Partial Pressure
Figuring out the partial pressures of various gases in a container.
Vapor Pressure Example
Vapor pressure example using the Ideal Gas Law
States of Matter
Introduction to the states or phases of matter.
States of Matter Follow-Up
More on Plasma and Hydrogen bonds.
Specific Heat, Heat of Fusion and Vaporization
Specific heat and phase changes: Calculating how much heat is needed to convert 200g of ice at -10C to 110 degree steam.
Chilling Water Problem
How much ice at -10 degrees C is necessary to get 500g of water down to 0 degrees C?
Phase Diagrams
Understanding and interpreting phase diagrams
Van Der Waals Forces
Van Der Waals Forces: London Dispersion Forces, Dipole Attractions, and Hydrogen Bonds.
Covalent Networks, Metallic, and Ionic Crystals
Covalent Networks, Metallic, and Ionic Crystals: Some of the strongest molecular structures.
Vapor Pressure
Vapor Pressure, Volatility, and Evaporation
Suspensions, Colloids and Solutions
Suspensions, Colloids and Solutions. The difference between Molarity and Molality.
Solubility
Solubility of salt and gas solutes in liquid solvent.
Boiling Point Elevation and Freezing Point Suppression
Raising or lowering the boiling or freezing point of a solution by adding solute.
Change of State Example
Specific Heat Capacity and Enthalpy of Vaporization example
Introduction to Kinetics
Kinetics, activation energy, activated complex and catalysts.
Reactions in Equilibrium
Equilibrium reactions and constants.
Mini-Video on Ion Size
Correcting a mistake and learning a bit about ion size
Keq Intuition (mathy and not necessary to progress)
A probabilistic look at how molecules react to develop the intuition behind the equilibrium constant formula.
Keq derivation intuition (can skip; bit mathy)
A more concrete attempt at showing how the probabilities of molecules reacting is related to their concentration.
Heterogeneous Equilibrium
Ignoring the solution or the solid state molecules when calculating the equilibrium constant.
Le Chatelier's Principle
Le Chatelier's Principle regarding the "stressing" of reactions in equilibrium
Introduction to pH, pOH, and pKw
Autoionization of water into hydronium and hydroxide ions. pH, pOH, and pKa.
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