Chad's General Chemistry Videos

Chad's Video Lectures for 1 Year of General Chemistry

FREE

Instructor

I have been helping science and pre-health students excel for more than two decades. I have spent most of the last 15 years managing the tutoring facility for the Chemistry department at one of the largest universities in the country and continue to work there to this day. I help thousands of students in person in large groups, in small groups, and one-on-one every semester and this site is my attempt to help far more. Chemistry and Physics are not as difficult as you think...I promise! Try one of my FREE or premium courses today! Happy Studying!

Chad McAllister

What Students are Saying

Emerald Salazar

“Okay so obviously this isn't the best case scenario but I crammed a semesters worth of chemistry in 2 weeks and my final grade was raised a letter grade higher! Chad is really great at explaining things! I will be continuing to use his courses for...”

Read More

“Okay so obviously this isn't the best case scenario but I crammed a semesters worth of chemistry in 2 weeks and my final grade was raised a letter grade higher! Chad is really great at explaining things! I will be continuing to use his courses for help with the rest of my chemistry classes!”

Read Less

Christine Sulzer

“Chad's videos have helped me grasp some challenging chemistry topics in words that I can understand and with relatable analogies. I'm so thankful that a fellow classmate told me about Chad. ”

“Chad's videos have helped me grasp some challenging chemistry topics in words that I can understand and with relatable analogies. I'm so thankful that a fellow classmate told me about Chad. ”

Read Less

shannon yap

“For me, these chemistry videos gave me the confidence and joy in learning chemistry for the first time. Chemistry was always that subject that I just kind of dodged. Somehow I was never able to understand the chemistry taught to me in high school...”

Read More

“For me, these chemistry videos gave me the confidence and joy in learning chemistry for the first time. Chemistry was always that subject that I just kind of dodged. Somehow I was never able to understand the chemistry taught to me in high school and college four years ago. I got so frustrated with just memorizing things and not understand a single thing about what was actually going on. Learning from Chad has got to be one of the best decisions I have made, as he has turned this subject into something I am looking forward to learning about and teaching me foundations that have been long overdue. I am not one with the videos yet, but I have to say they are truly wonderful. -Shannon ”

Read Less

Nadine Hana

“He is very clear, concise, and makes sure to list any possible tricks or exceptions we can run into on an exam. Definitely would recommend!!!! ”

“He is very clear, concise, and makes sure to list any possible tricks or exceptions we can run into on an exam. Definitely would recommend!!!! ”

Read Less

Kissa Batul

“This was the best review ever! It was simple to follow and the questions at the end of the chapters are very helpful. Also loved the solution videos! ”

“This was the best review ever! It was simple to follow and the questions at the end of the chapters are very helpful. Also loved the solution videos! ”

Read Less

Amy Chen

“This general chemistry review was the first purchase I had ever made to prepare/review for a course, and I NEVER leave reviews on anything, but I just have to say that this is the best course prep out there! I watch Chad's videos because not only ...”

Read More

“This general chemistry review was the first purchase I had ever made to prepare/review for a course, and I NEVER leave reviews on anything, but I just have to say that this is the best course prep out there! I watch Chad's videos because not only are his analogies hilarious and effective, he gives off the most positive energy and I feel inspired to learn chemistry because of him. Thank you for being such a phenomenal instructor, Chad! ”

Read Less

Raafia Mulla

“I think i learned more from Chad than i did from my orgo and physics professors combined. Chad, you are a boss! ”

“I think i learned more from Chad than i did from my orgo and physics professors combined. Chad, you are a boss! ”

Read Less

Jemi Patel

“The simple straightforward outlines really help focus on whats most important. Also, the quizzes are very helpful when determining what you do or don't yet understand.”

“The simple straightforward outlines really help focus on whats most important. Also, the quizzes are very helpful when determining what you do or don't yet understand.”

Read Less

HaetNim Kim

“Very clear and thorough outline lectures. Even though these lectures are online, Chad's lectures are super organized and because of his excellent teaching style, lectures are easy to follow and understand. I just wish discussion forum and/or conta...”

Read More

“Very clear and thorough outline lectures. Even though these lectures are online, Chad's lectures are super organized and because of his excellent teaching style, lectures are easy to follow and understand. I just wish discussion forum and/or contact e-mail are more active so questions that I have can be answered quickly. ”

Read Less

Megan Phipps

“These lectures help me understand my textbook and professor better. Chad covers every type of problem you could encounter on an exam and makes sure to use the same wording that a professor or textbook would use. This last point about wording is ex...”

Read More

“These lectures help me understand my textbook and professor better. Chad covers every type of problem you could encounter on an exam and makes sure to use the same wording that a professor or textbook would use. This last point about wording is extremely important because certain phrases indicate how you should approach a problem. If you don't know what certain phases mean, then it becomes increasingly difficult to know which equation to use and what exactly you are solving for. So my favorite thing about these lectures is how they address this issue. Additionally, Chad provides a lot of shortcut equations that are really helpful and necessary to know if you want to finish your exam on time. ”

Read Less

Klara Sulce

“What a wonderful collection of General Chemistry content made easy.”

“What a wonderful collection of General Chemistry content made easy.”

Read Less

MEGI PASHO

“So I cant find the words to describe how helpful this course has been. I mean for every science class that I've taken I have seen Chads Videos to help me understand. Thank you for everything you do, your time and your amazing way of explaining thi...”

Read More

“So I cant find the words to describe how helpful this course has been. I mean for every science class that I've taken I have seen Chads Videos to help me understand. Thank you for everything you do, your time and your amazing way of explaining things in such a easy way. Thank you!!!”

Read Less

Course Curriculum

  • 01

    Outlines

    Show Content
    • Abridged General Chemistry Outlines

  • 02

    Chapter 1 - Matter and Measurement

    Show Content
    • 1.1 Matter (11:03)

    • Matter (7 Questions)

    • 1.2 Units, Conversions, and Significant Figures (21:40)

    • Significant Figures (5 Questions)

    • Conversions and Density (20 Questions)

  • 03

    Chapter 2 - Atoms, Molecules and Ions

    Show Content
    • 2.1 Atomic Structure and Introduction to the Periodic Table (13:21)

    • Atomic Structure (5 Questions)

    • Atomic and Molecular Weights (4 Questions)

    • 2.2 Classifying Compounds (3:53)

    • 2.3 Nomenclature of Ionic Compounds (5:30)

    • Nomenclature of Ionic Compounds (6 Questions)

    • 2.4 Nomenclature of Molecular Compounds (3:39)

    • Nomenclature of Molecular Compounds (6 Questions)

    • 2.5 Naming Acids (6:34)

    • Nomenclature of Acids (6 Questions)

    • Nomenclature Summary Quiz (23 Questions)

  • 04

    Chapter 3 - Stoichiometry

    Show Content
    • 3.1 Reactions and Calculations With Moles (20:32)

    • Chemical Reactions (6 Questions)

    • Calculations with Moles (9 Questions)

    • 3.2 Mass Percents and Empirical and Molecular Formulas (10:19)

    • Mass Percents and Empirical and Molecular Formulas (8 Questions)

    • 3.3 Limiting Reagent Calculations (16:04)

    • Limiting Reagent Calculations (11 Questions)

  • 05

    Chapter 4 - Aqueous Reactions and Solution Stoichiometry

    Show Content
    • 4.1 Solutions and Electrolytes (9:44)

    • 4.2 Double Displacement Reactions (19:34)

    • 4.3 Molarity, Solution Stoichiometry, and Dilutions (14:12)

    • 4.4 Oxidation-Reduction Reactions (17:57)

  • 06

    Chapter 5 - Thermochemistry

    Show Content
    • 5.1 The First Law of Thermodynamics, Enthalpy, and Phase Changes (15:43)

    • 5.2 Calorimetry (18.03)

    • 5.3 Hess's Law and Enthalpies of Formation (19:17)

  • 07

    Chapter 6 - Electronic Structure

    Show Content
    • 6.1 Electromagnetic Radiation and the Photoelectric Effect (16:24)

    • 6.2 Electronic Transitions (Absorption and Emission) (15:06)

    • 6.3 The de Broglie Relation, the Heisenberg Uncertainty Principle, and Orbitals (5:45)

    • 6.4 Quantum Numbers (13:29)

    • 6.5 Electronic Configurations (20:12)

  • 08

    Chapter 7 - Periodic Properties of the Elements

    Show Content
    • 7.1 Overview of Trends and Atomic Radius (24:36)

    • 7.2 Ionization Energy (13:01)

    • 7.3 Electron Affinity, Electronegativity, and Descriptive Chemistry (10:28)

    • A Little Help

  • 09

    Chapter 8 - Bonding and Lewis Structures

    Show Content
    • 8.1 Bonding and Lattice Energy (17:31)

    • 8.2 Lewis Dot Structures (40:07)

    • 8.3 Bond Enthalpies (4:19)

  • 10

    Chapter 9 - Molecular Geometry and Bonding

    Show Content
    • 9.1 VSEPR Theory and Molecular Geometry (19:11)

    • 9.2 Hybridization (11:38)

    • 9.3 Polarity (12:26)

    • 9.4 Sigma and Pi Bonds (7:08)

    • 9.5 Molecular Orbital Theory (17:47)

  • 11

    Chapter 10 - Gases

    Show Content
    • 10.1 Properties of Gases and the Ideal Gas Law (18:53)

    • 10.2 Gas Laws (20:26)

    • 10.3 Partial Pressures, Density, and the Volume of Ideal Gases at STP (14:36)

    • 10.4 Graham's Law of Effusion and Real Gases (14:21)

  • 12

    Chapter 11 - Intermolecular Forces, Liquids, and Solids

    Show Content
    • 11.1 Intermolecular Forces (33:33)

    • 11.2 Phase Diagrams (12:58)

  • 13

    Chapter 12 - Modern Materials

    Show Content
    • Copy of Coming in the Future

  • 14

    Chapter 13 - Solutions and Colligative Properties

    Show Content
    • 13.1 Introduction to Colligative Properties, the van't Hoff factor, and Molallity (16:55)

    • 13.2 Calculations Involving Freezing Point Depression and Boiling Point Elevation (7:49)

    • 13.3 Vapor Pressure Depression and Raoult's Law (5:37)

    • 13.4 Osmotic Pressure (7:56)

  • 15

    Chapter 14 - Chemical Kinetics

    Show Content
    • 14.1 Rates and Rate Expressions (8:42)

    • 14.1 Rate Expressions (4 Questions)

    • 14.2 Rate Laws (19:43)

    • 14.2 Rate Laws (6 Questions)

    • 14.3 Mechanisms, Catalysts, and Reaction Coordinate Diagrams (16:36)

    • 14.3 Mechanisms and Catalysts (11 Questions)

    • 14.3 Reaction Coordinate Diagrams (8 Questions)

    • 14.4 Collision Theory and the Arrhenius Equation (12:57)

    • 14.4 Collision Theory and the Arrhenius Equation (7 Questions)

    • 14.5 Integrated Rate Laws and Half-Lives (15:33)

    • 14.5 Integrated Rate Laws and Half-Lives (10 Questions)

  • 16

    Chapter 15 - Chemical Equilibrium

    Show Content
    • 15.1 Equilibrium and Equilibrium Constants (19:09)

    • 15.2 Le Chatelier's Principle (14:55)

    • 15.3 Equilibrium Calculations (22:36)

  • 17

    Chapter 16 - Acid-Base Equilibria

    Show Content
    • 16.1 Introduction to Acids and Bases (31:24)

    • 16.2 Introduction to the pH Scale and pH Calculations (13:15)

    • 16.3 pH Calculations for Strong Acids and Bases (13:11)

    • 16.4 pH Calculations for Weak Acids and Bases (32:53)

    • 16.5 Acidity and Basicity of Salts (13:43)

  • 18

    Chapter 17 - Buffers, Titrations, and Solubility Equilibria

    Show Content
    • 17.1 Buffers (14:22)

    • 17.2 Titrations and Titration Curves (17:20)

    • 17.3 pH Calculations Involving Titrations (23:04)

    • 17.4 Solubility and Ksp (16:28)

    • 17.5 The Common Ion Effect and Precipitation (12:09)

    • 17.6 pH Effects on Solubility (5:02)

  • 19

    Chapter 18 - Thermodynamics

    Show Content
    • 18.1 The Laws of Thermodynamics (8:01)

    • 18.2 Entropy (6:45)

    • 18.3 Gibbs Free Energy and the Relationship between Delta G, Delta H, and Delta S (22:41)

    • 18.4 Delta G, Delta H, Delta S and Formation Reactions (14:33)

    • 18.5 Gibbs Free Energy and the Equilibrium Constant (11:12)

  • 20

    Chapter 19 - Electrochemistry

    Show Content
    • 19.1 Oxidation-Reduction Reactions and Oxidation States (11:16)

    • 19.2 Balancing Oxidation-Reduction Reactions (30:28)

    • 19.3 Galvanic Cells (20:34)

    • 19.4 Standard Cell Potentials (aka emf or Voltage) (14:43)

    • 19.5 Nonstandard Cell Potentials (the Nernst Equation) (12:05)

    • 19.6 Reduction Potentials and the Relationship between Cell Potential, Delta G, and the Equilibrium Constant (11:57)

    • 19.7 Electrolytic Cells (14:27)

    • 19.3 Galvanic Cells (20:34)

    • 19.8 Electrolysis Calculations (9:00)

    • 19.4 Standard Cell Potentials (aka emf or Voltage) (14:43)

    • A Little Help

  • 21

    Chapter 20 - Nuclear Chemistry

    Show Content
    • 20.1 Introduction to Nuclear Chemistry and Trends in Radioactivity (10:04)

    • 20.2 Balancing Nuclear Reactions (12:49)

    • 20.3 Routes of Nuclear Decay, Fission, and Fusion (15:23)

    • 20.4 Kinetics of Nuclear Decay (15:44)

    • 20.5 Energy of Nuclear Reactions and Nuclear Binding Energy (13:56)

  • 22

    Chapter 21 - Coordination Chemistry

    Show Content
    • 21.1 Introduction to Coordination Chemistry (4:45)

    • 21.2 Nomenclature of Complex Ions and Coordination Compounds (8:15)

    • 21.3 Isomers (10:13)

    • 21.4 Review of Electronic Configurations (3:28)

    • 21.5 Crystal Field Theory (6:33)

    • 21.6 Color (6:06)

    • 21.7 Magnetism (3:49)

  • 23

    Practice Final Exams

    Show Content
    • Practice Exams in Chad's Ultimate General Chemistry Review