CHEM 404

Welcome to the CHEM 404 resource page! A list of major topics and subtopics are listed below. The videos are carefully selected for quality of content, depth of coverage, and alignment with course material. Use the videos to preview, review, or enhance your understanding of course content.

Chemistry Honor Society​

  • Peer-led free tutoring for general and organic chemistry courses led by AXE
  • Location: Parsons W131
  • Hours: Tuesdays and Wednesdays, 7 PM to 9 PM
  • Contact: mamuchapter@gmail.com 

Chemistry TA Office Hours​

  • Free assistance with lab assignments, problems, concepts, and online homework assignments for: CHEM 403, CHEM 404, CHEM 405, and CHEM 411
  • Location: Zoom and in-person options available -- consult the TA office hours handout
  • Contact: Ian Konen (ian.konen@unh.edu)

Chemistry 404 Video Library

Sigma & Pi Bonds - Crash Course - starting at 5:27 video Learn More
Sigma & Pi Bonds - Janet Coonce video Learn More
Sigma & Pi Bonds - ChemistNate video Learn More
Valence Bonds - Brightstorm video Learn More
Valence Bonds - Khan Academy- also see sp2 & sp1 video Learn More
Khan Academy - Dipole Moments video Learn More
Polarity - Crash Course video Learn More
Polarity - Teacher's Pet video Learn More
VESPR - Crash Course video Learn More
VESPR - Tyler DeWitt video Learn More
Lewis Structures - Khan Academy - Formal Charge video Learn More
Lewis Structures - Ketzbook video Learn More
Lewis Structures - Crash Course video Learn More

Solutions - WACE Chem video Learn More
Solutions - Crash Course video Learn More
Solutions - Khan Academy video Learn More
Forces - Tyler DeWitt - Hydrogen bonds video Learn More
Forces - Khan Academy video Learn More
Forces - Fuse School video Learn More
Vapor Pressure - Dr. B's Chemistry Videos Learn More
Vapor Pressure - Khan Academy video Learn More
Vapor Pressure - Teacher's Pet video Learn More
Heat of Vapor/Fusion - Professor Dave Explains video Learn More
Heat of Vapor/Fusion - Khan Academy video Learn More
Heat of Vapor/Fusion - Teacher's Pet video Learn More
Phase Diagrams - Brightstorm video Learn More
Phase Diagrams - Khan Academy video Learn More
Phase Diagrams - Teacher's Pet video Learn More
Physical States & Phase Changes - Tyler DeWitt video Learn More
Physical States & Phase Changes - Khan Academy video Learn More
Physical States & Phase Changes - Teacher's Pet video Learn More

Chemistry 404, Physical Science - Hybridization in Organic Compounds Learn More
Polymers - FuseSchool video Learn More
Polymers - TedEd video Learn More
Polymers - Crash Course video Learn More
Functional Groups - Crash Course video Learn More
Functional Groups - Fuse School video Learn More
Functional Groups - Khan Academy video Learn More
Isomers - Khan Academy - all isomers video Learn More
Isomers - Khan Academy - cis/trans isomers video Learn More
Isomers - Khan Academy - Structural Isomers video Learn More
Hydrocarbon Nomenclature - Khan Academy - Alkynes video Learn More
Hydrocarbon Nomenclature - Khan Academy - Alkenes video Learn More
Hydrocarbon Nomenclature - Khan Academy - Alkanes video Learn More

ICE (RICE) Tables - Professor Dave Explains video Learn More
ICE (RICE) Tables - Crash Course video Learn More
Reaction Quotients - Bozeman Science video Learn More
Reaction Quotients - Q vs. Keq video Learn More
Reaction Quotients - Khan Academy video Learn More
Le Chatelier - Crash Course - starting at 4:40 video Learn More
Le Chatelier - Fuse School - Also see part 1 video Learn More
Le Chatelier - Teacher's Pet video Learn More
Equilibrium Constant - Khan Academy video Learn More
Equilibrium Constant - Bozeman Science video Learn More
Equilibrium Constant - Teacher's Pet video Learn More
Introduction to Equilibrium - Teacher's Pet video Learn More
Introduction to Equilibrium - TedEd video Learn More

Dissociation Constants - ChemistNATE video Learn More
Dissociation Constants - Khan Academy video Learn More
Dissociation Constants - Teacher's Pet video Learn More
Strong vs. Weak - FuseSchool video Learn More
Strong vs. Weak - Wayne Breslyn video Learn More
Strong vs. Weak - TedEd video Learn More
Conjugate Pairs - WinScience video Learn More
Conjugate Pairs - FuseSchool video Learn More
Conjugate Pairs - Khan Academy video Learn More
pH & pOH - Bozeman Science video Learn More
pH & pOH - Crash Course video Learn More
pH & pOH - Khan Academy video Learn More
Acid and Base Definitions - Khan Academy - Bronsted-Lowry video Learn More
Acid and Base Definitions - Khan Academy - Arrhenius video Learn More
Acid and Base Definitions - Teacher's Pet video Learn More

Titration Problems - Khan Academy - strong acid, strong base video Learn More
Titration Problems - Khan Academy - Weak acid, strong base video Learn More
Titration Problems - Fuse School - see part 2 video Learn More
Titrations - Khan Academy video Learn More
Titrations - FuseSchool video Learn More
Titrations - Teacher's Pet video Learn More
Buffers - Bozeman Science video Learn More
Buffers- Crash Course video Learn More
Buffers - Khan Academy video Learn More
Acid/Base Equilibrium - The Science Classroom video Learn More
Acid/Base Equilibrium - Khan Academy - Weak base video Learn More
Acid/Base Equilibrium - Khan Academy - Weak acid video Learn More

Free Energy & Keq - Khan Academy video Learn More
Free Energy & Keq - Bozeman Science video Learn More
Gibbs & Spontaneity - Khan Academy - Example video Learn More
Gibbs & Spontaneity - Khan Academy video Learn More
Gibbs & Spontaneity - Bozeman Science video Learn More
Gibb's Free Energy - Crash Course video Learn More
Gibb's Free Energy - Khan Academy video Learn More
Gibb's Free Energy - Bozeman Science video Learn More
Entropy- TedEd video Learn More
Entropy - Khan Academy video Learn More
Entropy - Bozeman Science video Learn More
Heat of Formation - Brightstorm video Learn More
Heat of Formation - Khan Academy video Learn More
Heat of Formation - Professor Dave Explains video Learn More
Hess's Law - Brightstorm video Learn More
Hess's Law - Khan Academy - Example video Learn More
Hess's Law - Khan Academy video Learn More
Enthalpy (review) - Fuse School - Endo/Exothermic video Learn More
Enthalpy (review) - Crash Course video Learn More
Enthalpy (review) - Khan Academy video Learn More

Catalysts - Fuse School video Learn More
Catalysts - Bozeman Science video Learn More
Catalysts - Professor Dave Explains video Learn More
What affects rate? - Fuse School video Learn More
What affects rate? - Teacher's Pet video Learn More
What affects rate? - Teacher's Pet-Ted Ed video Learn More
Arrhenius Equation - Khan Academy video Learn More
Arrhenius Equation - Khan Academy - different forms video Learn More
Arrhenius Equation - Ben's Chem Videos video Learn More
Rate-Determing Step - Khan Academy video Learn More
Rate-Determing Step - Bozeman Science video Learn More
Rate-Determing Step - Boomerchemistry video Learn More
Rate Laws - Khan Academy video Learn More
Rate Laws - Bozeman Science video Learn More
Rate Laws - JFR Science video Learn More
Reaction Rate - Khan Academy video Learn More
Reaction Rate - Fuse School video Learn More
Reaction Rate - Bozeman Science video Learn More
Collision Theory - Fuse School - part 1 video Learn More
Collision Theory - Fuse School - part 2 Learn More

Electrolysis - Tyler DeWitt video Learn More
Electrolysis - Khan Academy video Learn More
Electrolysis - Fuse School video Learn More
Cell Potentials - Crash Course 4:42 video Learn More
Cell Potentials - Khan Academy video Learn More
Cell Potentials - Organic Chemistry Tutor video Learn More
Galvanic Cells - Tyler DeWitt video Learn More
Galvanic Cells - Khan Academy video Learn More
Galvanic Cells - DNSeducation video Learn More
Intro to Electochem - Tyler DeWitt video Learn More
Intro to Electochem - Khan Academy video Learn More
Intro to Electochem - Fuse School video Learn More
Oxidation/Reduction Intro - Tyler DeWitt video Learn More
Oxidation/Reduction Intro - Khan Academy video Learn More
Oxidation/Reduction Intro - Crash Course video Learn More