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Professor Dave Explains
Solution Chemistry and Net Ionic Equations
What are electrolytes? Yes, they're what plants crave. But they are also ionic solids dissociated in solution, such that they can conduct electrical current. Learn about solutions!
Catalyst University
Kd, the Dissociation Constant: What is it?
Kd, the Dissociation Constant: What is it?
Catalyst University
Protein:Ligand Saturation Equation: Example #2
Protein:Ligand Saturation Equation: Example #2
Catalyst University
Protein:Ligand Saturation Equation: Example #1
Protein:Ligand Saturation Equation: Example #1
Catalyst University
Protein:Ligand Saturation Equation Derivation
Protein:Ligand Saturation Equation Derivation
Crash Course
Precipitation Reactions: Crash Course Chemistry
A lot of ionic compounds dissolve in water, dissociating into individual ions. But when two ions find each other that form an insoluble compound, they suddenly fall out of solution in what's called a precipitation reaction. In this...
Crash Course
Water and Solutions -- for Dirty Laundry: Crash Course Chemistry
Dihydrogen monoxide (better know as water) is the key to nearly everything. It falls from the sky, makes up 60% of our bodies, and just about every chemical process related to life takes place with it or in it. Without it, none...
Curated Video
The Secret to Quantum Chemistry
We take a deep dive to understand how chemistry works at a fundamental level. All chemistry is about electrons. They are the primary drivers responsible for an atom’s behavior in chemical reactions, or more precisely the way...
Catalyst University
Buffers: Henderson-Hasselbalch Proof pH=pKa
Proof that pH=pKa when conjugate acid and base concentrations are equal; proof that conjugate acid and base concentrations are equal when pH=pKa
Professor Dave Explains
Complex Ion Formation
Most transition metal cations can do something interesting in solution, they can interact with specific ligands to form complex ions. These coordinate covalent bonds are new territory, so let's get a mini introduction to inorganic...
Professor Dave Explains
Practice Problem: Calculations Involving pH and Ka
We know a bit about acids and bases, including the definitions of pH and pKa, as they relate to an acid-base equilibrium. If we have a weak acid and its concentration, as well as the pH of the solution, can we calculate the Ka for the...
Catalyst University
Graphical Estimation of Kd from P:L Binding Plot
Graphical Estimation of Kd from P:L Binding Plot
Fuse School
Ammonium Salts and Solutions
The importance of ammonium salt solutions is covered in a video that explains how to solve the reactions, the chemical equations, and the structure of the various ions.
JFR Science
Solubility and Reactions in Solution: How Does My Water Softener Work?
What is soap scum, and why does it form? Explore hard versus soft water with a video from JFR Science. The narrator explains why someone might have hard water, the factors that affect ion solubility, and how a water softener addresses...
Khan Academy
Khan Academy: Buffers, the Acid Rain Slayer
In this episode created of Crash Course, Hank talks about how nutty our world is via Buffers! He defines buffers and their compositions, talks about carbonate buffering systems in nature, acid rain, pH of buffers, and titration. Plus, a...