Bozeman Science
Reaction Intermediates
In this video Paul Andersen explains how reaction intermediates are created in elementary steps and may not appear as either a reactant or product. Experimentation is used in Chemistry to identify reaction intermediates.
Bozeman Science
Multistep Reactions
In this video Paul Andersen explains how an overall chemical reaction is made up of several elementary steps. The stoichiometry of this equation can be predicted but the rate law must be measured. If the elementary steps of the reaction...
Crash Course
Alkyne Reactions Tautomerization - Crash Course Organic Chemistry
Carbon-carbon double bonds are pretty common in nature, but triple bonds between carbons, called alkynes, are not. When alkynes do pop up in nature, it’s usually in a compound that’s toxic to humans, however, we can synthesize alkynes...
Crash Course
Intro to Reaction Mechanisms - Crash Course Organic Chemistry
When we venture to new places, we need navigational tools to guide us. In organic chemistry, those are reaction mechanisms! In this episode of Crash Course Organic Chemistry, we’ll learn all about how to write reaction mechanisms. Having...
Bozeman Science
Elementary Reactions
In this video Paul Andersen explains that elementary reactions are steps within a larger reaction mechanism. Colliding molecules require sufficient energy and proper orientation to break bonds and form new bonds. A unimolecular reaction...
Bozeman Science
Catalysts
Paul Andersen explains how catalysts can speed up a reaction without being consumed in the reaction. Catalysts can lower the activation energy of reaction be stabilizing the transition state. They can also create new reaction pathways...
Bozeman Science
The Rate Law
Paul Andersen explains how the rate law can be used to determined the speed of a reaction over time. Zeroth-order, first-order and second-order reactions are described as well as the overall rate law of a reaction. The rate of a reaction...
Crash Course
Alkene Redox Reactions - Crash Course Organic Chemistry
Oxidation-reduction reactions are going on around us, and inside us, all the time, and we can make redox reactions in organic chemistry easier to understand by tracking carbon-oxygen bonds. In this episode of Crash Course Organic...
Bozeman Science
The Rate-Limiting Step
In this video Paul Andersen explains why the slowest elementary step in a chemical reaction is the rate-limiting step. This step can be used to determine the overall rate law of the chemical reaction.
Curated Video
Reaction Mechanisms : Definitions, Analogies, and Applications
Reaction Mechanism - Definition & Traveler's Trip Analogy Reaction Mechanism & Rate Determining Step part 1
Curated Video
Examining the Rate-Determining Step Chemical Barrier
Rate Determining Step, definition, calculation in Hydrogen peroxide. Reaction Mechanism & Rate Determining Step part 2
Curated Video
Discovering Reaction Molecularity
Molecularity definition, Determination of molecularity in HI decomposition. Order & Molecularity of Reaction part 2
Catalyst University
Kinetics: Lindemann Mechanism Derivation
Kinetics: Lindemann Mechanism Derivation
Professor Dave Explains
Practice Problem: Mechanism - Reaction of an Epoxide
For this one we will have to know what epoxides do! It's a pretty neat little mechanism.
Professor Dave Explains
Practice Problem: Synthetic Strategy
We've got starting material and we've got a target molecule, and we've gotta figure out how to make the transformation in just two steps. Sift through that bag of synthetic tricks!
Catalyst University
Kinetics: The Pre-Equilibrium Approximation
Kinetics: The Pre-Equilibrium Approximation
Higgsino Physics
Why you can live in Hiroshima but not in Chernobyl
Radiation and fallout in Hiroshima vs in the Chernobyl accident. Hiroshima and Chernobyl both suffered a major atomic disaster, where radioactive atoms was released. Hiroshima was nuked by the uranium fissile atomic bomb, little boy with...
Professor Dave Explains
Practice Problem: Electrophilic Aromatic Substitution Multi-Step Pathway
EAS, not once, not twice, but thrice! Draw all the molecules, please. Don't forget about ortho/meta/para!
Professor Dave Explains
Energy Diagrams, Catalysts, and Reaction Mechanisms
It's time to learn a little more about a chemical reaction. How do molecules have to be arranged and how much energy do they have to collide with? What's a catalyst? Lots of great tidbits in this one.
Khan Academy
Khan Academy: Collision Theory
An introduction to collision theory and activation energy is presented. [8:42]
Sophia Learning
Sophia: Reaction Mechanism
This lesson will define reaction mechanism, and introduce the concept that reactions do not all occur in one step, and provide an example of a multistep reaction, along with how this is demonstrated on a reaction progress diagram....