TED Talks
TED: Why you should ditch deadly fossil-fuel appliances | Donnel Baird
In the US, people spend the overwhelming majority of their time inside buildings that burn fossil fuels, which are bad for both the environment and human health. (Think: breathing in air pollution from gas stoves, furnaces and water...
SciShow
Why Do People Like the Smell of Gasoline?
Why do we love the smell of something like gasoline that provides no clear evolutionary adaptation for us? Here are the psychological and chemical reasons that some researchers have suggested.
SciShow
Is That “New Car Smell” Dangerous?
Some of us can't get enough of that new car smell. But certain volatile organic compounds (VOCs) that help create this aroma are linked to cancer. While this doesn't mean new car smell definitely increases your chance of getting cancer,...
SciShow
Can Houseplants Improve Air Quality?
We all have that coworker who insists that the houseplants on their desks are improving the office air quality, but is there any truth to that? Hosted by: Olivia Gordon
SciShow
How Michael Faraday Changed the World with a Magnet | Great Minds
From a blacksmith's son, to one of the most repeated names in physics textbooks, Michael Faraday epitomized the spirit of scientific exploration
SciShow
Our Smelly Solar System
Sight, sound, and yes, taste, have all helped humanity better understand space, but what about smells? Scientists think we have a pretty good idea of what some places smell like, and decoding astronomical aromas can be a good way of...
SciShow
Can Houseplants Improve Air Quality?
We all have that coworker who insists that the houseplants on their desks are improving the office air quality, but is there any truth to that?
Crash Course
Synthesis, Distillation, & Recrystallization: Crash Course Organic Chemistry
We’re going back to the lab! So far we’ve learned some important lab techniques that organic chemists might use day to day, like chromatography and proton NMR, but there are even more to learn. In this episode of Crash Course Organic...
Crash Course
Aromaticity, Hückel's Rule, and Chemical Equivalence in NMR: Crash Course Organic Chemistry
If you’ve been paying attention so far in this series, you’ve probably heard of benzene. This molecule is flat, cyclic, and belongs to a special class of compounds known as aromatics. In this episode of Crash Course Organic Chemistry,...
Crash Course
More EAS - Electron Donating and Withdrawing Groups: Crash Course Organic Chemistry
In the previous episode we discussed what happens when we use electrophilic aromatic substitution to add a group to a benzene ring, but what happens when you try to add even more groups? Well, things get a little more complicated. In...
Crash Course
More EAS & Benzylic Reactions: Crash Course Organic Chemistry
We’ve already learned a lot about electrophilic aromatic substitution (EAS) and benzene, but guess what? There’s even more to learn! In this episode of Crash Course Organic Chemistry we’ll revisit our old friends the Friedel-Crafts...
Crash Course
Intro to Electrophilic Aromatic Substitution: Crash Course Organic Chemistry
We’ve talked about benzene a bit already in this series, but did you know that benzene rings are present in all kinds of familiar substances? The styrofoam packaging that comes with new appliances, some pharmaceuticals, pesticides, and...
Crash Course
Aromatics and Cyclic Compounds - Crash Course Chemistry
What's that smell? Smell's like Organic Chemistry! This week Hank talks about Aromatics and Cyclic Compounds and naming their substituents, resonance as well as common reactions & uses.
--
Table of Contents
Cyclic Organic Compounds &...
SciShow
The Strongest Bases in the World
Acids are widely considered to be the scariest chemical compounds of all, but bases can be just as powerful. Most powerful of all are a special class of pH scale-defying bases called superbases!
Curated Video
Solvent
The substance, such as water, in which another substance can dissolve. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films...
Curated Video
What's in a Cigarette?
Discover the scale and effects of the chemical ingredients in cigarettes. What are smokers breathing in to their lungs, and what effects are these chemicals having on them? Biology - Healthy Living - When a cigarette is burned it...
Curated Video
Electron Withdrawal (-M): The Nitrobenzene Effect
The -M effect involves electron withdrawal through resonance. In nitrobenzene, the nitro group pulls electron density away from the benzene ring, decreasing electron density and making the ring less reactive in electrophilic substitution...
Curated Video
Mesomeric Effect (+M): How Phenol Releases Electrons
The +M effect refers to electron donation through resonance, as seen in phenol where the hydroxyl group donates electrons into the benzene ring. This increases electron density in the ring and impacts reactivity and acidity
Curated Video
Resonance (Chemistry) Explained in Simple Words with Examples
Resonance is a way of describing delocalized electrons within certain molecules where a single Lewis formula cannot express the bonding. To understand resonance in chemistry, you need to first understand covalent bonds, sigma and pi...
Professor Dave Explains
Heterocycles Part 1: Furan, Thiophene, and Pyrrole
We've mentioned heterocycles before. They are cyclic molecules where one or more atoms in the ring are not carbon. Typically these involve oxygen, nitrogen, and sulfur. But there are so many different heterocycles. Different sizes, some...
Professor Dave Explains
Heterocycles Part 2: Pyridine
In the previous tutorial, we learned about some five-membered aromatic heterocycles. Those were furan, thiophene, and pyrrole. Now let's learn about a six-membered one, pyridine. This one is ubiquitous in nature, so let's get the scoop...
Catalyst University
Particle-on-a-Ring Example #1: Calculate Electron Probability
Particle-on-a-Ring Example #1: Calculate Electron Probability
Catalyst University
Tryptophan Conversion to Aminocarboxymuconate Semialdehyde
Part 1 of Tryptophan Degradation by the Liver
Catalyst University
Phase Diagrams | The Clausius-Clapeyron Equation [Example #1]
In this video, we use the Clausius-Clapeyron Equation to calculate the enthalpy of vaporization for a substance.