Chemistry 221 Video Lecture from October 25, 2024. This video covers material from Chapter 4 Part I and Chapter 4 Part II including limiting reactants, EF and MF of organic substances with combustion, the definition of solvent, solute and solution, and more. CH 221 website: http://mhchem.org/221 Let me know if you have any questions! Peace!…

This is the audio introduction to Chapter Guide Lesson Four (which covers Chapter Four in our textbook) for Chemistry 221.Av Michael Russell

This is the video introduction to Chapter Guide Lesson Four (which covers Chapter Four in our textbook) for Chemistry 221.Av Michael Russell

A screencast from Chapter 4 in CH 221 which looks at the chemical reaction and the features of them.Av Michael Russell

A screencast from Chapter 4 in CH 221 which discusses techniques used to balance chemical reactions.Av Michael Russell

A screencast from Chapter 4 in CH 221 which looks at theoretical and actual yields (and percent yield as well!)Av Michael Russell

A screencast from Chapter 4 in CH 221 which discusses limiting reactants and their meaning in chemistry.Av Michael Russell

A screencast from Chapter 4 in CH 221 which examines methods used to find empirical formulas of hydrocarbons through combustion analysis.Av Michael Russell

A screencast from Chapter 4 in CH 221 which examines methods used to find empirical formulas of hydrocarbons containing oxygen through combustion analysis.Av Michael Russell

A screencast from Chapter 3 in CH 221 which introduces solutions in chemistry.Av Michael Russell

A screencast from Chapter 3 in CH 221 which introduces acids and bases in chemistry.Av Michael Russell

A screencast from Chapter 4 in CH 221 that looks at net ionic reactions - the "action of the reaction" - as well as precipitation reactions.Av Michael Russell

A screencast from Chapter 4 in CH 221 that looks at more reaction types: acid/base, gas-forming and combustion reactions.Av Michael Russell

This the Complete Lecture for Chapter 4 Part 1. This episode is part 1 of 2 episodes.Av Michael Russell

This the Complete Lecture for Chapter 4 Part 1. This episode is part 2 of 2 episodes.Av Michael Russell

This the Complete Lecture for Chapter 4 Part II. This episode is part 1 of 2 episodes.Av Michael Russell

This the Complete Lecture for Chapter 4 Part II. This episode is part 2 of 2 episodes.Av Michael Russell

Chemistry 221 Video Lecture from October 23, 2024. This video covers material from Chapter 4 Part I including balancing chemical reactions, theoretical yields, actual yields, percent yields, the 'grams-moles-moles-grams' dance, and more. CH 221 website: http://mhchem.org/221 Let me know if you have any questions! Peace!…

Chemistry 221 Video Lecture from October 21, 2024. This video covers Day 3 of an exam review for the upcoming Midterm Exam I. We also started to discuss Chapter 4 Part I including an introduction to chemical reactions and more. CH 221 website: http://mhchem.org/221 Let me know if you have any questions! Peace!…

Chemistry 221 Video Lecture from October 18, 2024. This video covers Day 2 of an exam review for the upcoming Midterm Exam I. CH 221 website: http://mhchem.org/221 Let me know if you have any questions! Peace!Av mike.russell@mhchem.org

This video shows the Complete Lecture for the Exam I Review in CH 221.Av Michael Russell

This video offers a few tips and tricks on how to prepare for the first midterm exam in CH 221.Av Michael Russell

Chemistry 221 Video Lecture from October 16, 2024. This video covers Day 1 of an exam review for the upcoming Midterm Exam I. CH 221 website: http://mhchem.org/221 Let me know if you have any questions! Peace!Av mike.russell@mhchem.org

Chemistry 221 Video Lecture from October 14, 2024. This video covers material from Chapter 2 Part II of our textbook including percent composition ("percent by weight"), empirical formulas, molecular formulas and molar mass, and more. CH 221 website: http://mhchem.org/221 Let me know if you have any questions! Peace!…

Chemistry 221 Video Lecture from October 11, 2024. This video covers material from Chapter 2 Part II of our textbook including acids, bases, hydrated compounds, molar mass and molecules, percent composition ("percent by weight"), and more. CH 221 website: http://mhchem.org/221 Let me know if you have any questions! Peace!…

This is the audio introduction to Chapter Guide Lesson Three (which covers the second portion of Chapter Two in our textbook) for Chemistry 221.Av Michael Russell

This is the video introduction to Chapter Guide Lesson Three (which covers the second portion of Chapter Two in our textbook) for Chemistry 221.Av Michael Russell

A screencast from Chapter 2 Part 2 in CH 221 that provides an overview of compounds and their smallest component, a molecule.Av Michael Russell

A screencast from Chapter 2 Part 2 in CH 221 that provides an overview of allotropes of elements and the most important seven diatomics.Av Michael Russell

A screencast from Chapter 2 Part 2 in CH 221 that examines cations and anions in ionic bonds.Av Michael Russell

A screencast from Chapter 2 Part 2 in CH 221 which examines polyatomic ions. Try to memorize as many of these as you can!Av Michael Russell

A screencast from Chapter 2 Part 2 in CH 221 that gives a sort of "self quiz" on polyatomic nomenclature. You can use the controls on your player to stop/start the quiz.Av Michael Russell

A screencast from Chapter 2 Part 2 in CH 221 which examines the formation of ionic compounds.Av Michael Russell

A screencast from Chapter 2 Part 2 in CH 221 that discusses electrostatic forces and Coulomb's Law as applied to ionic bonding.Av Michael Russell

A screencast from Chapter 2 Part 2 in CH 221 that introduces covalent molecules and covalent bonding.Av Michael Russell

A screencast from Chapter 2 Part 2 in CH 221 that looks at acids, bases and hydrated compounds (called hydrates.)Av Michael Russell

A screencast from Chapter 2 Part 2 in CH 221 that provides an overview of molar mass and how it applies to compounds.Av Michael Russell

A screencast from Chapter 2 Part 2 in CH 221 that examines percent composition and how it can lead to an empirical formula.Av Michael Russell

A screencast from Chapter 2 Part 2 in CH 221 which looks at the relationship between empirical and molecular formulas when determining the identity of a compound.Av Michael Russell

This the Complete Lecture for Chapter 2 Part 2. This episode is part 1 of 2 episodes.Av Michael Russell

This the Complete Lecture for Chapter 2 Part 2. This episode is part 2 of 2 episodes.Av Michael Russell

Chemistry 221 Video Lecture from October 9, 2024. This video covers material from Chapter 2 Part II of our textbook including fixed charge and variable charge metals, making ionic bonds, covalent bonds (nonmetal plus nonmetal), Coulomb's law, and more. CH 221 website: http://mhchem.org/221 Let me know if you have any questions! Peace!…

Chemistry 221 Video Lecture from October 7, 2024. This video covers material from Chapter 2 Part I and Part II of our textbook including groups on the periodic table, the importance of nomenclature, allotropes, the seven diatomics, cations and anions, and more. CH 221 website: http://mhchem.org/221 Let me know if you have any questions! Peace!…

Chemistry 221 Video Lecture from October 4, 2024. This video covers material from Chapter 2 Part I of our textbook including isotopes, the atomic weight of an element, the mole and Avogadro's number, molar mass, an introduction to the periodic table, and more. CH 221 website: http://mhchem.org/221 Let me know if you have any questions! Peace!…

Av Michael Russell

This is the video introduction to Chapter Guide Lesson Two (which covers the first portion of Chapter Two in our textbook) for Chemistry 221.Av Michael Russell

A screencast from Chapter 2 Part 1 in CH 221 which looks at the atom and what it is made of on an atomic level.Av Michael Russell

Av Michael Russell

A screencast from Chapter 2 Part 1 in CH 221 which looks at isotopic abundance and methods to calculate it.Av Michael Russell

A screencast from Chapter 2 Part 1 in CH 221 which introduces the mole, the important counting number for chemists.Av Michael Russell