FuseSchool
Concentration Formula & Calculations
Learn the basics about Concentration formula and calculations. How do you calculate the masses of reactants and products from balanced equations? Find out more in this video!
Professor Dave Explains
Calculating Ion Concentrations in Solution
We know that concentration is typically expressed with molarity, which is moles per liter. But how do we know how many moles of solute are present in solution when an ionic solid dissolves in water? It's not so simple because these will...
FuseSchool
How To Do Titration Calculations
Titration experiments enable you to work out the concentration of an unknown solute, when you know the concentration of another solute. After carrying out the experiment, you have to do some calculations. In this video we run through...
Catalyst University
Real Gas Behavior | Fugacity & Equilibrium
Fugacity can be related to the equilibrium constant just like pressure. In this video, we derive an expression for the Kf (fugacity equilibrium constant) using Kp and the fugacity coefficients.
Catalyst University
Real Gas Behavior | The Compression Factor (Z) [Example #2]
Here, I work a second example in which we calculate a real gas's compression factor.
Catalyst University
Physical Chemistry | The Compression Factor (Z) [w/1 example]
1) What is the compression factor? 2) How is it calculated? 3) What does it tell us about repulsion, attraction, and energy? 4) 1 example of calculating compression factor. ***Another Example: https://youtu.be/Z5NsvRPZT6I
Professor Dave Explains
Expressing Concentration by Mass Percent
We know how to express solution concentration in terms of molarity and molality, but the common public also needs to communicate concentration for certain reasons, and they don't really know about moles and things like that. What do they...
Professor Dave Explains
Kinetic Molecular Theory and the Ideal Gas Laws
I bet many of you think that the ideal gas law must prohibit passing gas on the elevator. That's a very good guideline, but there are other important laws we must know! Let Professor Dave run you through the details.
Professor Dave Explains
Kinetic Molecular Theory and its Postulates
We learned about ideal gases and the ideal gas laws, and we briefly touched on kinetic molecular theory, which puts these laws in context. But let's now go through this theory more rigorously, analyzing each postulate one at a time.
FuseSchool
What Are Dilutions
In this video, we will look at what dilutions are in chemistry, how to calculate them using a very easy equation and even extending to multiple dilutions which are called serial dilutions. Dilution is the process of adding water (or...
Catalyst University
Osmotic Pressure | Example #1
In this video, we discuss osmotic pressure by working an example.
Catalyst University
Freezing Point Depression | Example #1
In this video, we work an example problem for freezing point depression in physical chemistry.
Professor Dave Explains
Molarity and Dilution
Now those pesky moles are swimming! But how much solute is there? Let's learn about how we measure concentrations of solutions.
Professor Dave Explains
Molality and Colligative Properties
Solute particles interfere with the physical processes a solution may undergo. These are known as the colligative processes of a solution. Ever wonder why we put salt on icy streets? Find out here!
msvgo
Stoichiometry
It explains the concept of Stoichiometry, Concentration of Solution, Mole Fraction, Molality & Molarity.
Professor Dave Explains
The Mole: Avogadro's Number and Stoichiometry
Yes, I know moles are adorable furry creatures. This is a different kind of mole! A numerical mole. And we need to understand them to be able to make predictions about reactions. Let Professor Dave take you through the finer points.
FuseSchool
Le Chatelier's Principle Part 1
What exactly is Le Chatelier's Principle? And why is it important to learn it to understand chemical reactions? Find out in this video!
Professor Dave Explains
Chemical Equilibria and Reaction Quotients
Many chemical reactions don't just go one way, they go forwards and backwards. Once there is balance between the two, this is an equilibrium. And we need to be able to predict how much stuff there will be at equilibrium! Get ready to...
FuseSchool
How To Use Moles - Part 2
Carry on learning about using moles in this part 2 of 3 parts. Avogradro’s number describes what is known as 1 mole, or 12 g of carbon atoms. This is used in chemical calculations. For any element, the relative atomic mass is the weight...
FuseSchool
Moles In Equations
Learn the basics about Moles in equations. How do you calculate a mole? How do moles work in equations? Find out more in this video!
FuseSchool
Calculating Molarity
Learn the basics about calculating molarity as part of the chemical calculations topic.
Professor Dave Explains
Balancing Chemical Equations
Atoms don't just appear and disappear into thin air, you silly goose. What are you, a magician? When we have a chemical equation we will have to balance it. Here's how to do it!
Curated Video
‘My life was at stake.’ Prominent Bridgeport pastor fought back against Baltimore carjacker
Surveillance video obtained by News 12 shows Rev. Kenneth Moales, Jr. jumping on the gunman, pinning him to the ground for about 20 seconds and then wrestling the gun out of his hand.