Senior Chemistry with Chemguy

Video Lectures

Displaying all 44 video lectures.
I. Equilibrium
Lecture 1
Equilibrium I: Closed Systems
Play Video		 Equilibrium I: Closed Systems
In this video lecture, Chemguy introduces the concept of equilibrium; closed systems.
Lecture 2
Equilibrium II: Equilibrium Expressions
Play Video		 Equilibrium II: Equilibrium Expressions
In this video lecture, Chemguy explains the law of mass action; equilibrium expressions.
Lecture 3
Equilibrium III: Heterogeneous Equilibrium
Play Video		 Equilibrium III: Heterogeneous Equilibrium
In this video lecture, Chemguy goes over heterogeneous equilibrium and the significance of the numerical value of K.
Lecture 4
Equilibrium IV: Equation Balancing Effects on K
Play Video		 Equilibrium IV: Equation Balancing Effects on K
In this video lecture, Chemguy teaches how the equation balancing affects the value of K.
Lecture 5
Equilibrium V: Determine Equilibrium Concentrations
Play Video		 Equilibrium V: Determine Equilibrium Concentrations
In this video lecture, Chemguy uses K to determine equilibrium concentrations.
Lecture 6
Equilibrium VI: Calculating Equilibrium Concentrations
Play Video		 Equilibrium VI: Calculating Equilibrium Concentrations
In this video lecture, Chemguy calculates equilibrium concentrations given a K value; same as Equilibrium 5 lesson, but reloaded for those having viewing problems with other one.
Lecture 7
Equilibrium VII: Equilibrium Shifts
Play Video		 Equilibrium VII: Equilibrium Shifts
In this video lecture, Chemguy explains equilibrium shifting through calculation of Q value.
II. Acids and Bases
Lecture 8
Acids and Bases I: Properties of Molecular & Neutral Ionic Solutions
Play Video		 Acids and Bases I: Properties of Molecular & Neutral Ionic Solutions
In this video lecture, Chemguy gives an overview of the properties of molecular and neutral ionic solutions.
Lecture 9
Acids and Bases II: Properties of Acids and Bases
Play Video		 Acids and Bases II: Properties of Acids and Bases
In this video lecture, Chemguy describes the properties of acids and bases.
Lecture 10
Acids and Bases III: Equilibrium Constant for Water
Play Video		 Acids and Bases III: Equilibrium Constant for Water
In this video lecture, Chemguy teaches the equilibrium constant for water, Kw.
Lecture 11
Acids and Bases IV: pH of Strong Acids & Bases
Play Video		 Acids and Bases IV: pH of Strong Acids & Bases
In this video lecture, Chemguy teaches pH calculations for strong acids and bases.
Lecture 12
Acids and Bases V: pH of Weak Acids
Play Video		 Acids and Bases V: pH of Weak Acids
In this video lecture, Chemguy calculates the pH of a weak acid.
Lecture 13
Acids and Bases VI: Using Quadratic Formula for pH Calculations of Weak Acids
Play Video		 Acids and Bases VI: Using Quadratic Formula for pH Calculations of Weak Acids
In this video lecture, Chemguy calculates the pH of a weak acid using the quadratic formula.
Lecture 14
Acids and Bases VII: pH of a Weak Base
Play Video		 Acids and Bases VII: pH of a Weak Base
In this video lecture, Chemguy calculates the pH of a weak base.
Lecture 15
Acids and Bases VIII: Bronsted-Lowry Net Acid-Base Equations
Play Video		 Acids and Bases VIII: Bronsted-Lowry Net Acid-Base Equations
In this videolecture, Chemguy writes Bronsted-Lowry net acid base equations.
Lecture 16
Acids and Bases IX: Acidic Deposition from Fossil Fuel Combustion
Play Video		 Acids and Bases IX: Acidic Deposition from Fossil Fuel Combustion
In this video lecture, Chemguy talks about acidic deposition from fossil fuel combustion.
Lecture 17
Acids and Bases X: Acid/Base Indicators
Play Video		 Acids and Bases X: Acid/Base Indicators
In this video lecture, Chemguy demonstrates acid/base indicators.
Lecture 18
Acids and Bases XI: Acid-Base Stoichiometry
Play Video		 Acids and Bases XI: Acid-Base Stoichiometry
In this video lecture, Chemguy performs 1:1 acid base stoichiometry.
Lecture 19
Acids and Bases XII: pH of a Solution Mixture of Acid and Base
Play Video		 Acids and Bases XII: pH of a Solution Mixture of Acid and Base
In this video lecture, Chemguy calculates the pH of a solution mixture of acid and base; in excess reagent.
Lecture 20
Acids and Bases XIII: pH at Equivalence Point
Play Video		 Acids and Bases XIII: pH at Equivalence Point
In this video lecture, Chemguy does some acid/base 2:1 stoichiometry; pH at the equivalence point.
Lecture 21
Acids and Bases XIV: Henderson/Hasselbalch Equation
Play Video		 Acids and Bases XIV: Henderson/Hasselbalch Equation
In this video lecture, Chemguy calculates the pH of a buffer solution using the Henderson/Hasselbalch equation.
Lecture 22
Acids and Bases XV: Titration Curves
Play Video		 Acids and Bases XV: Titration Curves
In this video lecture, Chemguy explains titrations and various titration curves.
III. Electrochemistry
Lecture 23
Redox I: Introduction to Electrochemistry
Play Video		 Redox I: Introduction to Electrochemistry
In this video lecture, Chemguy introduces electrochemistry; spontaneity.
Lecture 24
Redox II: Lead Metal in a Silver Nitrate Solution
Play Video		 Redox II: Lead Metal in a Silver Nitrate Solution
In this video lecture, Chemguy explains the redox reaction between lead metal in a silver nitrate solution.
Lecture 25
Redox III: Balancing with the
Play Video		 Redox III: Balancing with the "Half-Reaction" Method
In this video lecture, Chemguy explains balancing redox reactions with the "half-reaction" method.
Lecture 26
Redox IV: Redox Reaction in a Base
Play Video		 Redox IV: Redox Reaction in a Base
In this video lecture, Chemguy balances a redox reaction in a base.
Lecture 27
Redox V: Electrochemical Reactions with Faraday's Constant
Play Video		 Redox V: Electrochemical Reactions with Faraday's Constant
In this video lecture, Chemguy teaches how to do calculations for electrochemical reactions with Faraday's constant.
Lecture 28
Redox VI: Corrosion and Cathodic Protection
Play Video		 Redox VI: Corrosion and Cathodic Protection
In this video lecture, Chemguy goes over corrosion and the concept of cathodic protection.
Lecture 29
Redox VII: Oxidation Numbers
Play Video		 Redox VII: Oxidation Numbers
In this video lecture, Chemguy teaches oxidation numbers.
Lecture 30
Redox VIII: Balances Equation Using Oxidation Numbers
Play Video		 Redox VIII: Balances Equation Using Oxidation Numbers
In this video lecture, Chemguy balances a tricky equation using oxidation numbers.
Lecture 31
Redox IX: Voltaic Cell
Play Video		 Redox IX: Voltaic Cell
In this video lecture, Chemguy builds and describes a voltaic cell.
Lecture 32
Redox X: Electrolytic Cells
Play Video		 Redox X: Electrolytic Cells
In this video lecture, Chemguy explains electroytic cells.
IV. Thermochemistry
Lecture 33
Thermochemistry I: Thermodynamic Laws
Play Video		 Thermochemistry I: Thermodynamic Laws
In this video lecture, Chemguy introduces the topic of chemical energetics; thermodynamic laws.
Lecture 34
Thermochemistry II: Energy Conversions
Play Video		 Thermochemistry II: Energy Conversions
In this video lecture, Chemguy describes the energy conversions from nuclear fusion to electricity production.
Lecture 35
Thermochemistry III: Calorimetry
Play Video		 Thermochemistry III: Calorimetry
In this video lecture, Chemguy explains exo and endothermic reactions; calorimetry.
Lecture 36
Thermochemistry IV: Kinetic Energy
Play Video		 Thermochemistry IV: Kinetic Energy
In this video lecture, Chemguy explains kinetic energy; vibrational, rotational and translational energies.
Lecture 37
Thermochemistry V: Potential Energy and Bonding
Play Video		 Thermochemistry V: Potential Energy and Bonding
In this video lecture, Chemguy discusses potential energy; intra and intermolecular bonds; heat capacities.
Lecture 38
Thermochemistry VI: Molar Heat Capacity
Play Video		 Thermochemistry VI: Molar Heat Capacity
In this video lecture, Chemguy concludes molar heat capacity; phase and temperature changes.
Lecture 39
Thermochemistry VII: Temperature/Phase Change Calculation
Play Video		 Thermochemistry VII: Temperature/Phase Change Calculation
In this video lecture, Chemguy does a temperature/phase change calculation.
Lecture 40
Thermochemistry VIII: Warming of Water Through a Phase Change
Play Video		 Thermochemistry VIII: Warming of Water Through a Phase Change
In this video lecture, Chemguy goes through a calculation involving the warming of water through a phase change. The problem in question is the following: Calculate the heat required to raise the temperature of 50.0g of water from -20.0 °C to 30.0 °C.

NOTE: Always make sure masses are in kilograms and energy values are in kilojoules. Be consistent with units or you will get the wrong answer.
Lecture 41
Thermochemistry IX: Molar Heat of Fusion
Play Video		 Thermochemistry IX: Molar Heat of Fusion
In this video lecture, Chemguy explains a molar heat of fusion of water calculation.
Lecture 42
Thermochemistry X: Heats of Formation
Play Video		 Thermochemistry X: Heats of Formation
In this video lecture, Chemguy introduces chemical change; heats of formation.
Lecture 43
Thermochemistry XI: Hess' Law
Play Video		 Thermochemistry XI: Hess' Law
In this video lecture, Chemguy graphs reactions; Hess' Law of Additivity.
Lecture 44
Thermochemistry XII: Nuclear Change
Play Video		 Thermochemistry XII: Nuclear Change
In this video lecture, Chemguy explains nuclear change.