MhChem Chemistry with Dr. Michael Russell

110625 L2 Chemistry 221 Video Lecture Part 2

06 Nov 2025

Contributed by Lukas

Chemistry 221 L2 Video Lecture from November 6, 2025, Part 2 of 4. This video covers Part II of an Exam Review for the upcoming Midterm Exam II. Thi...

110625 L2 Chemistry 221 Video Lecture Part 1

06 Nov 2025

Contributed by Lukas

Chemistry 221 L2 Video Lecture from November 6, 2025, Part 1 of 4. This video covers Part I of an Exam Review for the upcoming Midterm Exam II. CH 2...

110525 L1 Chemistry 221 Video Lecture

05 Nov 2025

Contributed by Lukas

Chemistry 221 L1 Video Lecture from November 5, 2025. This video covers Day 2 of an Exam Review for the Midterm Exam II. CH 221 website: http://mhc...

110325 L1 Chemistry 221 Video Lecture

03 Nov 2025

Contributed by Lukas

Chemistry 221 L1 Video Lecture from November 3, 2025. This video covers Day 1 of an Exam Review for the Midterm Exam II. CH 221 website: http://mhc...

103125 L1 Chemistry 221 Video Lecture

31 Oct 2025

Contributed by Lukas

Chemistry 221 L1 Video Lecture from October 31, 2025. This video covers material from Chapter 5 including building a molecular orbital diagram, bond...

CH 221: A Video Introduction to Chapter Guide Five

30 Oct 2025

Contributed by Lukas

This is the video introduction to Chapter Guide Five for Chemistry 221.

Chapter 5 Screencast - Valence Bond and Molecular Orbital Theory

30 Oct 2025

Contributed by Lukas

A screencast from Chapter 5 in CH 221 entitled “Valence Bond and Molecular Orbital Theory”

Chapter 5 Screencast - Valence Bond Theory (BF3)

30 Oct 2025

Contributed by Lukas

A screencast from Chapter 5 in CH 221 entitled “Chapter 5 Screencast - Valence Bond Theory (BF3)”

Chapter 5 Screencast - Valence Bond Theory (CH4)

30 Oct 2025

Contributed by Lukas

A screencast from Chapter 5 in CH 221 entitled “Chapter 5 Screencast - Valence Bond Theory (CH4)”

Chapter 5 Screencast - Multiple Bonds in VB Theory

30 Oct 2025

Contributed by Lukas

A screencast from Chapter 5 in CH 221 entitled “Multiple Bonds in VB Theory”

Chapter 5 Screencast - An Introduction to Molecular Orbital Theory

30 Oct 2025

Contributed by Lukas

A screencast from Chapter 5 in CH 221 entitled “An Introduction to Molecular Orbital Theory”

Chapter 5 Screencast - MO Diagrams and Bond Order

30 Oct 2025

Contributed by Lukas

A screencast from Chapter 5 in CH 221 entitled “MO Diagrams and Bond Order”

Chapter 5 Screencast - More MO Diagrams (pi bonds)

30 Oct 2025

Contributed by Lukas

A screencast from Chapter 5 in CH 221 entitled “More MO Diagrams (pi bonds)”

Chapter 5 Screencast - Paramagnetism and Ions in MO Theory

30 Oct 2025

Contributed by Lukas

A screencast from Chapter 5 in CH 221 entitled “Paramagnetism and Ions in MO Theory”

Chapter 5 Complete Lecture - Part I of 2

30 Oct 2025

Contributed by Lukas

This the Complete Lecture for Chapter 5. This episode is part 1 of 2 episodes.

Chapter 5 Complete Lecture - Part 2 of 2

30 Oct 2025

Contributed by Lukas

This the Complete Lecture for Chapter 5. This episode is part 2 of 2 episodes.

103025 L2 Chemistry 221 Video Lecture Part 3

30 Oct 2025

Contributed by Lukas

Chemistry 221 L2 Video Lecture from October 30, 2025, Part 3 of 3. This video covers material from Chapter 5 including magnetism in molecular orbital...

103025 L2 Chemistry 221 Video Lecture Part 2

30 Oct 2025

Contributed by Lukas

Chemistry 221 L2 Video Lecture from October 30, 2025, Part 2 of 3. This video covers material from Chapter 5 including an introduction to molecular o...

103025 L2 Chemistry 221 Video Lecture Part 1

30 Oct 2025

Contributed by Lukas

Chemistry 221 L2 Video Lecture from October 30, 2025, Part 1 of 3. This video covers material from Chapter 5 including an introduction to valence bon...

102925 L1 Chemistry 221 Video Lecture

29 Oct 2025

Contributed by Lukas

Chemistry 221 L1 Video Lecture from October 29, 2025. This video covers material from Chapter 5 including valence bond theory (sp3 hybridization), t...

102725 L1 Chemistry 221 Video Lecture

27 Oct 2025

Contributed by Lukas

Chemistry 221 L1 Video Lecture from October 27, 2025. This video covers material from Chapter 4 and Chapter 5 including molecular polarity, VSEPR, V...

102425 L1 Chemistry 221 Video Lecture

24 Oct 2025

Contributed by Lukas

Chemistry 221 L1 Video Lecture from October 24, 2025. This video covers material from Chapter 4 including violations of the octet rule, paramagnetic...

102325 L2 Chemistry 221 Video Lecture Part 3

23 Oct 2025

Contributed by Lukas

Chemistry 221 L2 Video Lecture from October 23, 2025, Part 3 of 3. This video covers material from Chapter 4 including VSEPR with trigonal bipyramid ...

102325 L2 Chemistry 221 Video Lecture Part 2

23 Oct 2025

Contributed by Lukas

Chemistry 221 L2 Video Lecture from October 23, 2025, Part 2 of 3. This video covers material from Chapter 4 including multiple (double and triple) b...

102325 L2 Chemistry 221 Video Lecture Part 1

23 Oct 2025

Contributed by Lukas

Chemistry 221 L2 Video Lecture from October 23, 2025, Part 1 of 3. This video covers material from Chapter 4 including ionic and covalent bonding, Co...

102225 L1 Chemistry 221 Video Lecture

22 Oct 2025

Contributed by Lukas

Chemistry 221 L1 Video Lecture from October 22, 2025. This video covers material from Chapter 4 including polar versus nonpolar bonds, electronegati...

102025 L1 Chemistry 221 Video Lecture

20 Oct 2025

Contributed by Lukas

Chemistry 221 L1 Video Lecture from October 20, 2025. This video covers day 3 of an exam review for the upcoming Midterm Exam I. CH 221 website: ht...

101725 L1 Chemistry 221 Video Lecture

17 Oct 2025

Contributed by Lukas

Chemistry 221 L1 Video Lecture from October 17, 2025. This video covers day 2 of an exam review for the upcoming Midterm Exam I. CH 221 website: ht...

Exam I Review Session Complete Lecture

16 Oct 2025

Contributed by Lukas

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

CH 221 - A Video Introduction to Midterm Exam I

16 Oct 2025

Contributed by Lukas

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

101625 L2 Chemistry 221 Video Lecture Part 3

16 Oct 2025

Contributed by Lukas

Chemistry 221 L2 Video Lecture from October 16, 2025, Part 3 of 3. This video covers Part 3 of an exam review for the upcoming Midterm Exam I. CH 22...

101625 L2 Chemistry 221 Video Lecture Part 2

16 Oct 2025

Contributed by Lukas

Chemistry 221 L2 Video Lecture from October 16, 2025, Part 2 of 3. This video covers Part 2 of an exam review for the upcoming Midterm Exam I. CH 22...

101625 L2 Chemistry 221 Video Lecture Part 1

16 Oct 2025

Contributed by Lukas

Chemistry 221 L2 Video Lecture from October 16, 2025, Part 1 of 3. This video covers Part 1 of an exam review for the upcoming Midterm Exam I. CH 22...

101525 L1 Chemistry 221 Video Lecture

15 Oct 2025

Contributed by Lukas

Chemistry 221 L1 Video Lecture from October 15, 2025. This video covers day 1 of an exam review for the upcoming Midterm Exam I. CH 221 website: ht...

101325 L1 Chemistry 221 Video Lecture

13 Oct 2025

Contributed by Lukas

Chemistry 221 L1 Video Lecture from October 13, 2025. This video covers material from Chapter 3 including the nomenclature of ionic compounds, the n...

101025 L1 Chemistry 221 Video Lecture

10 Oct 2025

Contributed by Lukas

Chemistry 221 L1 Video Lecture from October 10, 2025. This video covers material from Chapter 3 including electron configurations for neutral atoms ...

CH 221: A Video Introduction to Chapter Guide Three

09 Oct 2025

Contributed by Lukas

This is the video introduction to Chapter Guide Three for Chemistry 221.

Chapter 3 Screencast - Waves and Frequencies for Electromagnetic Radiation

09 Oct 2025

Contributed by Lukas

A screencast from Chapter 3 in CH 221 entitled “Waves and Frequencies for Electromagnetic Radiation”

Chapter 3 Screencast - Planck's Constant

09 Oct 2025

Contributed by Lukas

A screencast from Chapter 3 in CH 221 entitled “Planck's Constant”

Chapter 3 Screencast - Photoelectric Effect / nm to kJ Conversions

09 Oct 2025

Contributed by Lukas

A screencast from Chapter 3 in CH 221 entitled “Photoelectric Effect / nm to kJ Conversions”

Chapter 3 Screencast - The Bohr Model

09 Oct 2025

Contributed by Lukas

A screencast from Chapter 3 in CH 221 entitled “The Bohr Model”

Chapter 3 Screencast - de Broglie and Heisenberg

09 Oct 2025

Contributed by Lukas

A screencast from Chapter 3 in CH 221 entitled “de Broglie and Heisenberg”

Chapter 3 Screencast - Schrodinger and the Four Quantum Numbers

09 Oct 2025

Contributed by Lukas

A screencast from Chapter 3 in CH 221 entitled “Schrodinger and the Four Quantum Numbers”

Chapter 3 Screencast - nl Notation, Orbital Shapes and Nodes

09 Oct 2025

Contributed by Lukas

A screencast from Chapter 3 in CH 221 entitled “nl Notation, Orbital Shapes and Nodes”

Chapter 3 Screencast - The Pauli Exclusion Principle / n+l Rule

09 Oct 2025

Contributed by Lukas

A screencast from Chapter 3 in CH 221 entitled “The Pauli Exclusion Principle / n+l Rule”

Chapter 3 Screencast - Atomic Electron Configurations

09 Oct 2025

Contributed by Lukas

A screencast from Chapter 3 in CH 221 entitled “Atomic Electron Configurations”

Chapter 3 Screencast - Periodic Trends

09 Oct 2025

Contributed by Lukas

A screencast from Chapter 3 in CH 221 entitled “Periodic Trends”

Chapter 3 Screencast - Naming Ionic Compounds / Polyatomic Ions

09 Oct 2025

Contributed by Lukas

A screencast from Chapter 3 in CH 221 entitled “Naming Ionic Compounds / Polyatomic Ions”

Chapter 3 Screencast - Covalent Compounds, Acids, Bases, Hydrates

09 Oct 2025

Contributed by Lukas

A screencast from Chapter 3 in CH 221 entitled “Covalent Compounds, Acids, Bases, Hydrates

Chapter 3 Complete Lecture Part I

09 Oct 2025

Contributed by Lukas

This the Complete Lecture for Chapter 3. This episode is part 1 of 2 episodes.

Chapter 3 Complete Lecture Part II

09 Oct 2025

Contributed by Lukas

This the Complete Lecture for Chapter 3. This episode is part 2 of 2 episodes.

100925 L2 Chemistry 221 Video Lecture Part 4

09 Oct 2025

Contributed by Lukas

Chemistry 221 L2 Video Lecture from October 9, 2025, Part 4 of 4. This video covers material from Chapter 3 including ionic compounds with variable c...

100925 L2 Chemistry 221 Video Lecture Part 3

09 Oct 2025

Contributed by Lukas

Chemistry 221 L2 Video Lecture from October 9, 2025, Part 3 of 4. This video covers material from Chapter 3 including periodic properties using the p...

100925 L2 Chemistry 221 Video Lecture Part 2

09 Oct 2025

Contributed by Lukas

Chemistry 221 L2 Video Lecture from October 9, 2025, Part 2 of 4. This video covers material from Chapter 3 including an overview of quantum numbers,...

100925 L2 Chemistry 221 Video Lecture Part 1

09 Oct 2025

Contributed by Lukas

Chemistry 221 L2 Video Lecture from October 9, 2025, Part 1 of 4. This video covers material from Chapter 3 including an overview the de Broglie equa...

100825 L1 Chemistry 221 Video Lecture

08 Oct 2025

Contributed by Lukas

Chemistry 221 L1 Video Lecture from October 8, 2025. This video covers material from Chapter 3 including an overview of the four quantum numbers, nl...

100625 L1 Chemistry 221 Video Lecture

06 Oct 2025

Contributed by Lukas

Chemistry 221 L1 Video Lecture from October 6, 2025. This video covers material from Chapter 3 including converting from nm to kJ (and back again), ...

CH 221: An Video Introduction to Chapter Guide Two

04 Oct 2025

Contributed by Lukas

This is the video introduction to Chapter Guide Two for Chemistry 221.

Chapter 2 Screencast - Democritius and Dalton

04 Oct 2025

Contributed by Lukas

A screencast from Chapter 2 in CH 221 entitled “Democritius and Dalton”

Chapter 2 Screencast - The Modern Atom

04 Oct 2025

Contributed by Lukas

A screencast from Chapter 2 in CH 221 entitled “The Modern Atom”

Chapter 2 Screencast - Atomic Number and Isotopes

04 Oct 2025

Contributed by Lukas

A screencast from Chapter 2 in CH 221 entitled “Atomic Number and Isotopes”

Chapter 2 Screencast - Atomic Mass

04 Oct 2025

Contributed by Lukas

A screencast from Chapter 2 in CH 221 entitled “Atomic Mass”

Chapter 2 Screencast - Chemical Formulas, the 7 Diatomics, Allotropes

04 Oct 2025

Contributed by Lukas

A screencast from Chapter 2 in CH 221 entitled “Chemical Formulas, the 7 Diatomics, Allotropes”

Chapter 2 Screencast - Empirical Formulas and Isomers

04 Oct 2025

Contributed by Lukas

A screencast from Chapter 2 in CH 221 entitled “Empirical Formulas and Isomers”

Chapter 2 Screencast - The Mole and Molar Mass

04 Oct 2025

Contributed by Lukas

A screencast from Chapter 2 in CH 221 entitled “The Mole and Molar Mass”

Chapter 2 Complete Lecture Part I

04 Oct 2025

Contributed by Lukas

This the Complete Lecture for Chapter 2. This episode is part 1 of 2 episodes.

Chapter 2 Complete Lecture Part II

04 Oct 2025

Contributed by Lukas

This the Complete Lecture for Chapter 2. This episode is part 2 of 2 episodes.

100325 L1 Chemistry 221 Video Lecture

03 Oct 2025

Contributed by Lukas

Chemistry 221 L1 Video Lecture from October 3, 2025. This video covers material from Chapter 2 and Chapter 3 including the molar mass of compounds, ...

100225 L2 Chemistry 221 Video Lecture Part 4

02 Oct 2025

Contributed by Lukas

Chemistry 221 L2 Video Lecture from October 2, 2025, Part 4 of 4. This video covers material from Chapter 3 including the Bohr model for the atom, sh...

100225 L2 Chemistry 221 Video Lecture Part 3

02 Oct 2025

Contributed by Lukas

Chemistry 221 L2 Video Lecture from October 2, 2025, Part 3 of 4. This video covers material from Chapter 3 including a discussion of light, electrom...

100225 L2 Chemistry 221 Video Lecture Part 2

02 Oct 2025

Contributed by Lukas

Chemistry 221 L2 Video Lecture from October 2, 2025, Part 2 of 4. This video covers material from Chapter 2 including a discussion of the mole and Av...

100225 L2 Chemistry 221 Video Lecture Part 1

02 Oct 2025

Contributed by Lukas

Chemistry 221 L2 Video Lecture from October 2, 2025, Part 1 of 4. This video covers material from Chapter 2 including an overview of the atom, proton...

100125 L1 Chemistry 221 Video Lecture

01 Oct 2025

Contributed by Lukas

Chemistry 221 L1 Video Lecture from October 1, 2025. This video covers material from Chapter 2 including the importance of atomic mass, how atomic m...

092925 L1 Chemistry 221 Video Lecture

29 Sep 2025

Contributed by Lukas

Chemistry 221 L1 Video Lecture from September 29, 2025. This video covers material from Chapter 2 including the composition of the atom (protons, ne...

092625 L1 Chemistry 221 Video Lecture

26 Sep 2025

Contributed by Lukas

Chemistry 221 L1 Video Lecture from September 26, 2025. This video covers material from Chapter 1 (and a small bit from Chapter 2) including measure...

092525 L2 Chemistry 221 Video Lecture Part 3

25 Sep 2025

Contributed by Lukas

Chemistry 221 L2 Video Lecture from September 25, 2025, Part 3 of 3. This video covers material from Chapter 1 including measurements in chemistry, p...

092525 L2 Chemistry 221 Video Lecture Part 2

25 Sep 2025

Contributed by Lukas

Chemistry 221 L2 Video Lecture from September 25, 2025, Part 2 of 3. This video covers material from Chapter 1 including more on elements and the per...

092525 L2 Chemistry 221 Video Lecture Part 1

25 Sep 2025

Contributed by Lukas

Chemistry 221 L2 Video Lecture from September 25, 2025, Part 1 of 3. This video covers material from Chapter 1 including a discussion of "what is che...

092425 L1 Chemistry 221 Video Lecture

24 Sep 2025

Contributed by Lukas

Chemistry 221 L1 Video Lecture from September 24, 2025. This video covers material from Chapter 1 including a discussion of measurements and SI unit...

092225 L1 Chemistry 221 Video Lecture

22 Sep 2025

Contributed by Lukas

Chemistry 221 L1 Video Lecture from September 22, 2025. This video covers material from Chapter 1 including a discussion of "what is chemistry", typ...

Getting Started in Chemistry with Dr. Russell!

30 Jul 2025

Contributed by Lukas

Welcome! This is a video to help students get started in Dr. Russell’s chemistry classes at Mt. Hood Community College in Gresham, Oregon, USA. We...

Finding AC 1303, AC 2501, AC 2507 and AC 2568

23 Jul 2025

Contributed by Lukas

This video will help you find our three main chemistry classrooms (namely AC 1303, AC 2501 and AC 2507) as well as my office (AC 2568) at Mt. Hood Co...

Welcome to Chemistry 221!

23 Jul 2025

Contributed by Lukas

Welcome to Chemistry 221 with Dr. Michael Russell!

Chapter 1 Complete Lecture Part II

23 Jul 2025

Contributed by Lukas

This the Complete Lecture for Chapter 1. This episode is part 2 of 2 episodes.

Chapter 1 Complete Lecture Part I

23 Jul 2025

Contributed by Lukas

This the Complete Lecture for Chapter 1. This episode is part 1 of 2 episodes.

Chapter 1 Screencast - Sig Figs and Calculations / Scientific Notation

23 Jul 2025

Contributed by Lukas

A screencast from Chapter 1 in CH 221 entitled "Sig Figs and Calculations / Scientific Notation"

Chapter 1 Screencast - Significant Figures (Sig figs)

23 Jul 2025

Contributed by Lukas

A screencast from Chapter 1 in CH 221 entitled "Significant Figures (Sig figs)"

Chapter 1 Screencast - Precision and Accuracy

23 Jul 2025

Contributed by Lukas

A screencast from Chapter 1 in CH 221 entitled "Precision and Accuracy"

Chapter 1 Screencast - Density

23 Jul 2025

Contributed by Lukas

A screencast from Chapter 1 in CH 221 entitled "Density"

Chapter 1 Screencast - Temperature and Volume

23 Jul 2025

Contributed by Lukas

A screencast from Chapter 1 in CH 221 entitled "Temperature and Volume"

Chapter 1 Screencast - Measurements, Metrics, Length, Mass, Time

23 Jul 2025

Contributed by Lukas

A screencast from Chapter 1 in CH 221 entitled "Measurements, Metrics, Length, Mass, Time"

Chapter 1 Screencast - What is Chemistry?

23 Jul 2025

Contributed by Lukas

A screencast from Chapter 1 in CH 221 entitled "What is Chemistry?"

Chapter 1 Screencast - Domains of Chemistry

23 Jul 2025

Contributed by Lukas

A screencast from Chapter 1 in CH 221 entitled "Domains of Chemistry"

Chapter 1 Screencast - Phases, Mass and Weight

23 Jul 2025

Contributed by Lukas

A screencast from Chapter 1 in CH 221 entitled "Phases, Mass and Weight"

Chapter 1 Screencast - Mixtures, Elements and Compounds

23 Jul 2025

Contributed by Lukas

A screencast from Chapter 1 in CH 221 entitled "Mixtures, Elements and Compounds"

Chapter 1 Screencast - The Periodic Table

23 Jul 2025

Contributed by Lukas

A screencast from Chapter 1 in CH 221 entitled "The Periodic Table"

CH 221: A Video Introduction to Chapter Guide One

23 Jul 2025

Contributed by Lukas

This is the video introduction to Chapter Guide One for Chemistry 221.

060818 Chemistry 223 Video Lecture

08 Jun 2018

Contributed by Lukas

Chemistry 223 Video Lecture from June 8, 2018 covering an exam review (day 2 of 2) for the final A.C.S. lecture exam. https://mhchem.org/223/classroo...

060818 Chemistry 223 Audio Lecture

08 Jun 2018

Contributed by Lukas

Chemistry 223 Audio Lecture from June 8, 2018 covering an exam review (day 2 of 2) for the final A.C.S. lecture exam. https://mhchem.org/223/classroo...

How to Prepare for the Final Exam in CH 223

06 Jun 2018

Contributed by Lukas

This video offers a few tips and tricks on how to prepare for the final lecture exam in CH 223. https://mhchem.org/223/classroom/zAudio/223FE.mp4