Science360
Removing radioactive waste from water 5 not-so-easy steps
Chemists at the University of Iowa, led by associate professor Tori Forbes, are using National Science Foundation funding to investigate how to remove radioactive substances from water. Forbes' team creates and tests various chemical...
Professor Dave Explains
Signal Transduction in Immune Cells: Receptor-Ligand Interactions
Now that we know some things about immune cell structure and function, we need to start understanding how these cells interact on the molecular level, and how signals are translated into cellular response. This means looking at...
Visual Learning Systems
The Periodic Table: Elements and Atoms
This program makes the Modern Periodic Table come alive to students. Numerous real-life examples of elements are exemplified in the table. Animations and graphics illustrate concepts not easily achieved through other instructional...
Professor Dave Explains
Will Synthetic Vitamins Make Me Explode?
The words natural and synthetic are thrown around a lot these days, when talking about foods, medicine, and other things. But what do they really mean, and how are they different? Is one necessarily better than the other? Can the...
Professor Dave Explains
Practice Problem: Types of Protons
We learned about how pairs of protons can have specific relationships. They can be homotopic, enantiotopic, diastereotopic, or heterotopic. Let's apply this to some examples!
Professor Dave Explains
Practice Problem: VSEPR Theory and Molecular Geometry
What's with all these shapes? Let's practice assigning hybridization, electron-domain geometry, and molecular geometry. Octahedral! Tetrahedral! Linear! Pyramids and see-saws and what not! Chemistry is fun, isn't it?
Curated Video
Titration Calculations: Understanding Concentration and Molar Concentration
The video is a lecture on titration calculations. The video is divided into two parts, with the first part focusing on concentration and molar concentration. The professor explains the concept of concentration and how it is calculated...
Curated Video
Why Do Bubbles Form In A Glass Of Water?
Water especially the one which flows through the pipe contains atmospheric gases, such as nitrogen and oxygen, dissolved in it. As the glass filled with water sits out for a few hours, its temperature rises slightly (water gets warmer),...
Professor Dave Explains
IIT/JEE Chemistry Practice #9: Molarity/Molality
Practice REAL problems from actual past IIT/JEE exams with Professor Dave!
Catalyst University
CYP2E1 Mechanism Part 2: Conversion of Ethandiol to Acetate
CYP2E1 Mechanism Part 2: Conversion of Ethandiol to Acetate
FuseSchool
Bucky Balls, Nanotubes & Graphene
Learn the basics about bucky balls, graphene and nano tubes. This video start with a short recap on Allotropes and then starts you off learning about Fullerenes and Graphene and then gives you an overview into nanoscience and it's uses...
Professor Dave Explains
Practice Problem: Site of Protonation on a Weak Base
For this one we will need to understand the basics about Bronsted-Lowry acid-base reactions, and we also should be able to gauge the stability of various potential conjugate bases.
Professor Dave Explains
Practice Problem: E2 on Cyclic Systems and Cyclohexane Chairs
For this one we will want to recall some of the rules about doing E2 on a cyclohexane ring, as well as the relative stabilities of cyclohexane chairs. Combining concepts! Predicting kinetics!
Curated Video
Slowing or Reversing Aging: Can We Live for 180 years?
Ageing is a complex process which results from progressive loss of the body’s ability to maintain itself. This ageing comes with diseases and a general decline in health. Over the past few decades, scientists have come to better...
Catalyst University
Pressure; Introduction to Gas Ideality and Reality
Pressure; Introduction to Gas Ideality and Reality
Catalyst University
BASICS of Glycolysis and the Krebs Cycle - Production of ATP, NADH, & FADH2
In this video, we discuss the basic functions of glycolysis and the Krebs cycle in producing ATP, NADH, and FADH2, of which the latter two power the electron transport chain.
Catalyst University
Biochemical Mechanism of the Smell of Death | How do Bodies Decay?
In this video, we will discuss the stages of corpse decomposition and also the molecules (and their biosynthetic pathways) that contribute to the smell of a dead, decaying body.
Professor Dave Explains
Practice Problem: Balancing Equations
Who couldn't use a little practice balancing equations? If you've seen my tutorial outlining how to do this, then you're ready for four rapid fire examples to make sure you're ready to do this on your own. Give them a shot!
Professor Dave Explains
Practice Problem: Hydrogenation, Isomerism, and Cyclohexane Chairs
For this one we need to understand the stereospecificity of hydrogenation over platinum metal, stereochemical relationships, and the relative stability of cyclohexane chair conformations.
Curated Video
Balancing Chemical Equations and Understanding Chemical Formulas
This video is a tutorial on balancing chemical equations. The presenter discusses the law of conservation of mass and the importance of balancing equations to determine the ratios of reactants and products. They explain the meaning of...
Professor Dave Explains
IIT/JEE Chemistry Practice #17: Molecular Geometry
Practice REAL problems from actual past IIT/JEE exams with Professor Dave!
Curated Video
Heat of Vaporization
This program begins by defining heat of vaporization is the amount of heat that must be added or given off to vaporize one gram or kilogram of a substance and is expressed as J/g or J/kg. Through real, live footage and animation,...
Professor Dave Explains
Practice Problem: Conversions Using Avogadro's Number
The concept of the mole is a little tricky when you first learn about, but soon you're converting between grams and moles and atoms with ease. Let's practice some conversions using Avogadro's Number now!