Bozeman Science
Intermolecular Potential Energy
In this video Paul Andersen explains the importance of intermolecular forces in chemistry. Intermolecular forces exist between dipoles (like hydrogen bonds), between dipoles and induced dipoles (like Ar and HCl) and between induced...
SciShow
How Alchemy Led to Modern-Day Chemistry & Medicine
At the heart of alchemy was the quest to turn ordinary metals into gold. Despite the hopelessness of that goal, alchemists still made a lot of discoveries that formed the foundation of modern chemistry and medicine.
SciShow
SciShow Talk Show: Dr. Heiko Langner on Birds and Bioaccumulation
Crash Course Chemistry Consultant, Dr. Heiko Langner talks to Hank about lab safety, geochemical research, and cleaning up super fund sites. Afterward, Jessi Knudsen from Animal Wonders joins them with Zapper, the Alexandrian Parakeet....
SciShow
10 Surprising Chemicals Your Body Makes
Everything is made of chemicals, including the human body, but there are some especially weird ones
Bozeman Science
Neutralization Reaction
In a neutralization reaction (or acid-base reaction) a proton is transferred from the Brinsted--Lowry acid to the Brinsted--Lowry base. Water is amphoteric and so it can serve as either an acid or a base in a neutralization reaction. The...
Crash Course
The Digestive System: CrashCourse Biology
Hank takes us through the bowels of the human digestive system and explains why it's all about surface area.
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...
TED-Ed
TED-Ed: The surprising cause of stomach ulcers - Rusha Modi
It's a common misconception that stomach ulcers are caused by emotional upset, psychological distress, or spicy food. Yet no convincing study has ever demonstrated that these factors directly cause ulcer disease. So what does cause...
Crash Course
Passing Gases: Effusion, Diffusion and the Velocity of a Gas - Crash Course Chemistry
We have learned over the past few weeks that gases have real-life constraints on how they move here in the non-ideal world. As with most things in chemistry (and also in life) how a gas moves is more complex than it at first appears. In...
Crash Course
Carboxylic Acids: Crash Course Organic Chemistry
What do the smells of feet, armpits, vomit, and goats all have in common? (Besides being super gross…) Carboxylic acids! Despite being responsible for some of our least favorite odors, carboxylic acids are also super useful in organic...
Bozeman Science
Dipole Forces
In this video Paul Andersen describes the intermolecular forces associated with dipoles. A dipole is a molecule that has split charge. Dipole may form associations with other dipoles, induced dipoles or ions. An important type of...
Crash Course
Digestive System, part 2: Crash Course A&P
Nearly 200 years ago, Alexis St. Martin was shot in the stomach. He was saved by local army doctor William Beaumont, but had to live out his remaining years with a gaping hole in the stomach -- allowing Beaumont to learn a lot about how...
Crash Course
Carboxylic Acid Derivatives - Interconversion & Organometallics: Crash Course Organic Chemistry
We get it, learning so many different organic reactions is probably giving you a headache, but hopefully this episode can help! We’re getting even deeper into carboxylic acid derivatives, some of which are used in common headache...
Bozeman Science
Redox Reactions
In this video Paul Andersen explains how redox reactions are driven by the movement of electrons from the substance that is oxidized to the substance that is reduced. Oxidation is the loss of electrons and reduction is the gaining of...
Crash Course
Acid-Base Reactions in Solution: Crash Course Chemistry
Last week, Hank talked about how stuff mixes together in solutions. Today, and for the next few weeks, he will talk about the actual reactions happening in those solutions - atoms reorganizing themselves to create whole new substances in...
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!
Bozeman Science
Solutions
In this video Paul Andersen explains the important properties of solutions. A solution can be either a solid, liquid or gas but it must be homogeneous in nature. The solutes can not be separated with a filter and so either chromatography...
Bozeman Science
Acid-Base Equilibrium
In this video Paul Andersen explains how acid-base chemistry can be understood in terms of equilibrium. Water is present in all acid-base chemistry and is amphoteric in nature. The Ka and Kb values can be used to determine the strength...
Bozeman Science
Covalent Bonding
In this video Paul Andersen explains how covalent bonds form between atoms that are sharing electrons. Atoms that have the same electronegativity create nonpolar covalent bonds. The bond energy and bond length can be determined by...
Crash Course
Calorimetry: Crash Course Chemistry
Today's episode dives into the HOW of enthalpy. How we calculate it, and how we determine it experimentally...even if our determinations here at Crash Course Chemistry are somewhat shoddy.
--
Table of Contents
Hess' Law 2:30
Calorimeter...
Bozeman Science
Acids, Bases, and pH
Paul Andersen explains pH as the power of hydrogen. He explains how increases in the hydronium ion (or hydrogen ion) concentration can lower the pH and create acids. He also explains how the reverse is true. An analysis of a strong acid...
Curated Video
Balancing Acid/Base Neutralization Equations - 1 EASY TRICK - sodium hydroxide and hydrochloric acid
How to make a balanced chemical equation using sodium hydroxide and hydrochloric acid! In this video, we're going to show you how to quickly and easily balance acid/base chemical equations. This is a skillset that is essential for...
Curated Video
Difference between acids and bases. And why supervillains love them.
What is the difference between acids and bases? This is a commonly asked question in both chemistry and biology classes. In this video, we will go through the definition of acid and base, and why they are so important to us, and, uh,...
Curated Video
Strong acid
A strong acid is one that is fully ionised in solution. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films reinforce abstract...