Course: Chemistry Dnatube

share this page with the world.

WATCH LECTURE

Lec 1 - Elements and Atoms

Elements and Atoms How elements relate to atoms. The basics of how protons, electrons and neutrons make up an atom.
WATCH LECTURE

Lec 2 - Introduction to the atom

Introduction to the atom The atom, proton, neutron and electron
WATCH LECTURE

Lec 3 - Orbitals

Orbitals An introduction to orbitals
WATCH LECTURE

Lec 4 - More on orbitals and electron co ...

More on orbitals and electron configuration More intuition on orbitals. Touching on electron configuration.
WATCH LECTURE

Lec 5 - Electron Configurations

Electron Configurations Introduction to using the periodic table to determine electron configurations
WATCH LECTURE

Lec 6 - Electron Configurations 2

Electron Configurations 2 Figuring out configurations for the d-block elements
WATCH LECTURE

Lec 7 - Valence Electrons

Valence Electrons Looking at valence electrons to figure out reactivity
WATCH LECTURE

Lec 8 - Groups of the Periodic Table

Groups of the Periodic Table Properties of alkali, alkaline earth and transition metals. Halogens and noble gases.
WATCH LECTURE

Lec 9 - Periodic Table Trends: Ionizatio ...

Periodic Table Trends: Ionization Energy What an ion is. Using the periodic table to understand how difficult it is to ionize an atom.
WATCH LECTURE

Lec 10 - Other Periodic Table Trends

Other Periodic Table Trends Electronegativity, metallic nature and atomic radius.
WATCH LECTURE

Lec 11 - Ionic, Covalent, and Metallic Bonds

Ionic, Covalent, and Metallic Bonds Introduction to ionic, covalent, polar covalent and metallic bonds.
WATCH LECTURE

Lec 12 - Molecular and Empirical Formulas

Molecular and Empirical Formulas Introduction to molecular and empirical formulas. Calculating molecular mass.
WATCH LECTURE

Lec 13 - The Mole and Avogadro's Number

The Mole and Avogadro's Number Introduction to the idea of a mole as a number (vs. an animal)
WATCH LECTURE

Lec 14 - Formula from Mass Composition

Formula from Mass Composition Figuring out the empirical formula from a molecules mass composition
WATCH LECTURE

Lec 15 - Another mass composition problem

Another mass composition problem Another exercise converting a mass composition to an empirical formula.
WATCH LECTURE

Lec 16 - Balancing Chemical Equations

Balancing Chemical Equations The art of balancing equations in chemistry!
WATCH LECTURE

Lec 17 - Stoichiometry

Stoichiometry Introduction to stoichiometry
WATCH LECTURE

Lec 18 - Stoichiometry: Limiting Reagent

Stoichiometry: Limiting Reagent Stoichiometry problem where we have a limiting reagent!
WATCH LECTURE

Lec 19 - Ideal Gas Equation: PV=nRT

Ideal Gas Equation: PV=nRT Intuition behind the ideal gas equation: PV=nRT.
WATCH LECTURE

Lec 20 - Ideal Gas Equation Example 1

Ideal Gas Equation Example 1 Figuring out the number of moles of gas we have using the ideal gas equation: PV=nRT.
WATCH LECTURE

Lec 21 - Ideal Gas Equation Example 2

Ideal Gas Equation Example 2 PV/T is a constant. Figuring out the volume of an ideal gas at standard temperature and pressure (STP).
WATCH LECTURE

Lec 22 - Ideal Gas Equation Example 3

Ideal Gas Equation Example 3 Figuring out the mass of Oxygen we have.
WATCH LECTURE

Lec 23 - Ideal Gas Example 4

Ideal Gas Example 4 Figuring out the molar mass of a mystery molecule at STP.
WATCH LECTURE

Lec 24 - Partial Pressure

Partial Pressure Figuring out the partial pressures of various gases in a container.
WATCH LECTURE

Lec 25 - States of Matter

States of Matter Introduction to the states or phases of matter.
WATCH LECTURE

Lec 26 - States of Matter Follow-Up

States of Matter Follow-Up More on Plasma and Hydrogen bonds.
WATCH LECTURE

Lec 27 - Specific Heat, Heat of Fusion a ...

Specific Heat, Heat of Fusion and Vaporization Specifict heat and phase changes: Calculating how much heat is needed to convert 200g of ice at -10C to 110 degree steam.
WATCH LECTURE

Lec 28 - Chilling Water Problem

Chilling Water Problem How much ice at -10 degrees C is necessary to get 500g of water down to 0 degrees C?
WATCH LECTURE

Lec 29 - Phase Diagrams

Phase Diagrams Understanding and interpreting phase diagrams
WATCH LECTURE

Lec 30 - Van Der Waals Forces

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

Lec 31 - Covalent Networks, Metallic, an ...

Covalent Networks, Metallic, and Ionic Crystals Covalent Networks, Metallic, and Ionic Crystals: Some of the strongest molecular structures.
WATCH LECTURE

Lec 32 - Vapor Pressure

Vapor Pressure Vapor Pressure, Volatility, and Evaporation
WATCH LECTURE

Lec 33 - Suspensions, Colloids and Solutions

Suspensions, Colloids and Solutions Suspensions, Colloids and Solutions. The difference between Molarity and Molality.
WATCH LECTURE

Lec 34 - Solubility

Solubility Solubility of salt and gas solutes in liquid solvent.
WATCH LECTURE

Lec 35 - Boiling Point Elevation and Fre ...

Boiling Point Elevation and Freezing Point Supression Raising or lowering the boiling or freezing point of a solution by adding solute.
WATCH LECTURE

Lec 36 - Introduction to Kinetics

Introduction to Kinetics Kinetics, activation energy, activated complex and catalysts.
WATCH LECTURE

Lec 37 - Reactions in Equilibrium

Reactions in Equilibrium Equilibrium reactions and constants.
WATCH LECTURE

Lec 38 - Mini-Video on Ion Size

Mini-Video on Ion Size Correcting a mistake and learning a bit about ion size
WATCH LECTURE

Lec 39 - Keq Intuition (mathy and not ne ...

Keq Intuition (mathy and not necessary to progress) A probabilistic look at how molecules react to develop the intuition behind the equilibrium constant formula.
WATCH LECTURE

Lec 40 - Keq derivation intuition (can s ...

Keq derivation intuition (can skip; bit mathy) A more concrete attempt at showing how the probabilities of molecules reacting is related to their concentration.
WATCH LECTURE

Lec 41 - Heterogenous Equilibrium

Heterogenous Equilibrium Ignoring the solution or the solid state molecules when calculating the equilibrium constant.
WATCH LECTURE

Lec 42 - Le Chatelier's Principle

Le Chatelier's Principle Le Chatelier's Principle regarding the "stressing" of reactions in equilibrium
WATCH LECTURE

Lec 43 - Introduction to pH, pOH, and pKw

Introduction to pH, pOH, and pKw Autoionization of water into hydronium and hydroxide ions. pH, pOH, and pKa.
WATCH LECTURE

Lec 44 - Acid Base Introduction

Acid Base Introduction Arrhenius, Bronsted Lowry, and Lewis Acids and Bases.
WATCH LECTURE

Lec 45 - pH, pOH of Strong Acids and Bases

pH, pOH of Strong Acids and Bases Calculating the pH or pOH of strong acids and bases.
WATCH LECTURE

Lec 46 - pH of a Weak Acid

pH of a Weak Acid Calculating the pH of a weak acid
WATCH LECTURE

Lec 47 - pH of a Weak Base

pH of a Weak Base pH of .2 M of NH3 (weak base).
WATCH LECTURE

Lec 48 - Conjugate Acids and Bases

Conjugate Acids and Bases Introduction to conjugate acids and bases
WATCH LECTURE

Lec 49 - pKa and pKb Relationship

pKa and pKb Relationship The pKa and pKb relationship between conjugate acids and bases (both of which are weak).
WATCH LECTURE

Lec 50 - Buffers and Hendersen-Hasselbalch

Buffers and Hendersen-Hasselbalch Buffers and the Hendersen-Hasselbalch equation
WATCH LECTURE

Lec 51 - Strong Acid Titration

Strong Acid Titration Strong acid titration and equivalence point
WATCH LECTURE

Lec 52 - Weak Acid Titration

Weak Acid Titration Equivalence point when titrating a weak acid
WATCH LECTURE

Lec 53 - Half Equivalence Point

Half Equivalence Point Figuring out the pKa of an unknown weak acid from the half equivalence point
WATCH LECTURE

Lec 54 - Titration Roundup

Titration Roundup Making sure you fully understand titration curves
WATCH LECTURE

Lec 55 - Introduction to Oxidation States

Introduction to Oxidation States Oxidation and reduction. Oxidation states.
WATCH LECTURE

Lec 56 - More on Oxidation States

More on Oxidation States More practice calculating oxidation states
WATCH LECTURE

Lec 57 - Hydrogen Peroxide Correction

Hydrogen Peroxide Correction orrecting an error in the last video regarding hydrogen peroxide.
WATCH LECTURE

Lec 58 - Redox Reactions

Redox Reactions Oxidation reduction (or redox) reactions
WATCH LECTURE

Lec 59 - Galvanic Cells

Galvanic Cells Redox reactions to drive Galvanic Cells.
WATCH LECTURE

Lec 60 - Types of Decay

Types of Decay Alpha, Beta, Gamma Decay and Positron Emission
WATCH LECTURE

Lec 61 - Half-Life

Half-Life Introduction to half-life
WATCH LECTURE

Lec 62- Exponential Decay Formula Proof ...

Exponential Decay Formula Proof (can skip, involves Calculus) Showing that N(t)=Ne^(-kt) describes the amount of a radioactive substance we have at time T. For students with background in Calculus. Not necessary for intro chemistry class.
WATCH LECTURE

Lec 63 - Introduction to Exponential Decay

Introduction to Exponential Decay Introduction to Exponential Decay
WATCH LECTURE

Lec 64 - More Exponential Decay Examples

More Exponential Decay Examples A few more examples of exponential decay.
WATCH LECTURE

Lec 65 - Macrostates and Microstates

Macrostates and Microstates The difference between macrostates and microstates. Thermodynamic equilibrium.
WATCH LECTURE

Lec 66 - Quasistatic and Reversible Proc ...

Quasistatic and Reversible Processes Using theoretically quasi-static and/or reversible processes to stay pretty much at equilibrium.
WATCH LECTURE

Lec 67 - First Law of Thermodynamics/ In ...

First Law of Thermodynamics/ Internal Energy First law of thermodynamic and Internal Energy
WATCH LECTURE

Lec 68 - More on Internal Energy

More on Internal Energy Getting more intuition of internal energy, heat, and work
WATCH LECTURE

Lec 69 - Work from Expansion

Work from Expansion How a system can do work by expanding
WATCH LECTURE

Lec 70 - PV-diagrams and Expansion Work

PV-diagrams and Expansion Work Why work from expansion is the area under the curve of a PV-diagram
WATCH LECTURE

Lec 71 - Proof: U=(3/2)PV or U=(3/2)nRT

Proof: U=(3/2)PV or U=(3/2)nRT Conceptual proof that the internal energy of an ideal gas system is 3/2 PV.
WATCH LECTURE

Lec 72 - Work Done by Isothermic Process

Work Done by Isothermic Process Isothermic and Adiabatic processes. Calculating the work done by an isothermic process. Seeing that it is the same as the heat added.
WATCH LECTURE

Lec 73 - Carnot Cycle and Carnot Engine

Carnot Cycle and Carnot Engine Introduction to the Carnot Cycle and Carnot Heat Engine
WATCH LECTURE

Lec 74 - Proof: Volume Ratios in a Carno ...

Proof: Volume Ratios in a Carnot Cycle Proof of the volume ratios in a Carnot Cycle
WATCH LECTURE

Lec 75 - Proof: S (or Entropy) is a vali ...

Proof: S (or Entropy) is a valid state variable Prroof that S (or entropy) is a valid state variable.
WATCH LECTURE

Lec 76 - Thermodynamic Entropy Definitio ...

Thermodynamic Entropy Definition Clarification Clarifying that the thermodynamic definition of Entropy requires a reversible system.
WATCH LECTURE

Lec 77 - Reconciling Thermodynamic and S ...

Reconciling Thermodynamic and State Definitions of Entropy Long video explaining why entropy is a measure of the number of states a system can take on (mathy, but mind-blowing).
WATCH LECTURE

Lec 78 - Entropy Intuition

Entropy Intuition A discussion of what entropy is and what it isn't.
WATCH LECTURE

Lec 79 - Maxwell's Demon

Maxwell's Demon Maxwell's Demon: A thought experiment that seems to defy the 2nd Law of Thermodynamics
WATCH LECTURE

Lec 80 - More on Entropy

More on Entropy More clarification as to what entropy is and what entropy is not.
WATCH LECTURE

Lec 81 - Efficiency of a Carnot Engine

Efficiency of a Carnot Engine Definition of efficiency for a heat engine. Efficiency of a Carnot Engine.
WATCH LECTURE

Lec 82 - Carnot Efficiency 2: Reversing ...

Carnot Efficiency 2: Reversing the Cycle Seeing how we can scale and or reverse a Carnot Engine (to make a refrigerator)
WATCH LECTURE

Lec 83 - Carnot Efficiency 3: Proving t ...

Carnot Efficiency 3: Proving that it is the most efficient Proving that a Carnot Engine is the most efficient engine
WATCH LECTURE

Lec 84 - Enthalpy

Enthalpy Understanding why enthalpy can be viewed as "heat content" in a constant pressure system.
WATCH LECTURE

Lec 85 - Heat of Formation

Heat of Formation Standard heat of formation or standard enthalpy change of formation.
WATCH LECTURE

Lec 86 - Hess's Law and Reaction Enthalp ...

Hess's Law and Reaction Enthalpy Change Using Hess's Law and standard heats of formation to determine the enthalpy change for reactions
WATCH LECTURE

Lec 87 - Gibbs Free Energy and Spontaneity

Gibbs Free Energy and Spontaneity Intuition behind why spontaneity is driven by enthalpy, entropy and temperature. Introduction to Gibbs free energy.
WATCH LECTURE

Lec 88 - Gibbs Free Energy Example

Gibbs Free Energy Example Determining if a reaction is spontaneous by calculating the change in Gibbs Free Energy.
WATCH LECTURE

Lec 89 - More rigorous Gibbs Free Energy ...

More rigorous Gibbs Free Energy/ Spontaneity Relationship More formal understanding of why a negative change in Gibbs Free Energy implies a spontaneous, irreversible reaction.
WATCH LECTURE

Lec 90 - A look at a seductive but wrong ...

A look at a seductive but wrong Gibbs/Spontaneity Proof A look at why the "proof" of the relation between changes in Gibbs Free Energy and Spontaneity is wrong in many textbooks.
WATCH LECTURE

Lec 91 - Stoichiometry Example Problem 1

Stoichiometry Example Problem 1 Figuring grams of reactants and product produced from reaction of phosphorous and chlorine
WATCH LECTURE

Lec 92 - Stoichiometry Example Problem 2

Stoichiometry Example Problem 2 Stoichiometry Example Problem 2
WATCH LECTURE

Lec 93 - Limiting Reactant Example Problem 1

Limiting Reactant Example Problem 1 Limiting Reactant Example Problem 1
WATCH LECTURE

Lec 94 - Empirical and Molecular Formula ...

Empirical and Molecular Formulas from Stoichiometry Empirical and Molecular Formulas from Stoichiometry
WATCH LECTURE

Lec 95 - Example of Finding Reactant Emp ...

Example of Finding Reactant Empirical Formula Example of Finding Reactant Empirical Formula
WATCH LECTURE

Lec 96 - Stoichiometry of a Reaction in ...

Stoichiometry of a Reaction in Solution Stoichiometry of a Reaction in Solution
WATCH LECTURE

Lec 97 - Another Stoichiometry Example i ...

Another Stoichiometry Example in a Solution Another Stoichiometry Example in a Solution
WATCH LECTURE

Lec 98 - Molecular and Empirical Forumla ...

Molecular and Empirical Forumlas from Percent Composition Molecular and Empirical Forumlas from Percent Composition. Example 2.9 from Kotz Chemistry book
WATCH LECTURE

Lec 99 - Acid Base Titration

Acid Base Titration Using acid-base titration to find mass of oxalic acid
WATCH LECTURE

Lec 100 - Spectrophotometry Introduction

Spectrophotometry Introduction Spectrophotometry, Transmittance, Absorbance and the Beer-Lambert Law
WATCH LECTURE

Lec 101 - Spectrophotometry Example

Spectrophotometry Example Spectrophotometry Example - Determining concentration based on absorbance
WATCH LECTURE

Lec 102 - Hess's Law Example

Hess's Law Example Hess's Law Example
WATCH LECTURE

Lec 103 - Vapor Pressure Example

Vapor Pressure Example Vapor pressure example using the Ideal Gas Law
WATCH LECTURE

Lec 104 - Change of State Example

Change of State Example Specific Heat Capacity and Enthalpy of Vaporization example

Chemistry


Source of these courses is khan 
Videos on chemistry (roughly covering a first-year high school or college course).
khan  Website: http://www.dnatube.com/school/khan

SEE UNIVERSITY PANEL

khan 

Videos are obtained from khan 
COURSE NAME: Chemistry

195362 LECTURE VIEWS

2696 COURSE VIEWS