Professor Dave Explains
Practice Problem: Empirical and Molecular Formulas
How do we know how many atoms of each element are in a particular compound? Through clever experiments! Here let's practice using percent mass information to get the empirical and molecular formulas of a particular compound.
Professor Dave Explains
Titration of Strong Acid With Strong Base
One of the most commonly performed techniques in the general chemistry laboratory is the acid-base titration. This is an analytical technique that we can use to determine the concentration of some analyte by titrating with some titrant...
Professor Dave Explains
Practice Problem: Molarity Calculations
Solution concentration is measured in molarity, which is moles solute per liter of solution. Can we calculate concentration, moles, or volume, given the other two values? Sure, it's easy!
Professor Dave Explains
Practice Problem: Enthalpy of Vaporization
Can we do stoichiometry regarding phase changes? Sure! If we know how many moles of a substance we have, and the energy associated with each mole of that substance undergoing a particular phase change, we can get the energy associated...
FuseSchool
How To Use Moles - Part 3
Watch the final part of the 'using moles' videos, to complete your understanding of the chemical calculations topic. Avogadro’s number describes what is known as 1 mole, or 12 g of carbon atoms. This is used in chemical calculations. For...
FuseSchool
In Depth: Atomic Mass Units
Learn the basics about Atomic Mass Units. The atomic mass is used to find the average mass of elements and molecules and to solve stoichiometry problems. Find out more in this video!
FuseSchool
Calculating Molar Volumes Using Experimental Data
Learn the basics about Calculating molar volumes using experimental data. How do you calculate molar volumes? How do you use experimental data? Find out more in this video!
The Noted Anatomist
Review of Directional Terms
This video tutorial consists of a series of practice problems aimed at helping use directional terms in anatomy: 0:00. Intro 0:23. Practicing the terms using examples 4:42. In-a-Nutshell 4:48. Acknowledgements
Catalyst University
Calculate Concentrations in a Buffer (Example Problem)
In this video, we discuss Calculate Concentrations in a Buffer (Example Problem)
Easy Languages
What Mexicans like about their culture
Easy Languages is an international video project aiming at supporting people worldwide to learn languages through authentic street interviews and expose the street culture of participating partner countries abroad. Episodes are produced...
Professor Dave Explains
Molar Gas Volume: Stoichiometry With Gases
We know a lot about ideal gases, including how to use all of the ideal gas laws. But we haven't talked much about how to do stoichiometry with gases. As it happens, we can do stoichiometry with gases not just using molar quantities, but...
FuseSchool
How To Use Moles - Part 1
Learn the basics about using moles. This is part 1 of 3 parts, teaching you about using moles, as a part of the chemical calculations topic. Avogadro’s number describes what is known as 1 mole, or 12 g of carbon atoms. This is used in...
FuseSchool
How To Calculate Gas Volumes
Do you want to know how to calculate the volume of gases? This chemistry video will show you how to do it with simple real world examples. If you know two of these three, you can work out the third: mass in grams, number of moles and...
Catalyst University
Crystal Lattice Structures: Density Calculation 1
Crystal Lattice Structures: Density Calculation 1
FuseSchool
Molar Volume Of Gas
In this video to learn about the molar volumes of gases, how to calculate this and where this knowledge is needed in everyday life.
Catalyst University
Anatomy | The Three Types of Skin Cancers
In this video, I explain and differentiate the three main types of skin cancers: basal cell carcinomas, squamous cell carcinomas, and malignant melanomas.
National Institute of Standards and Technology
Desperate Measures!
In their first adventure, the SI Superheroes (aka the International League of Measurement Units) use the power of measurement to help a stranded soccer player get home.
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...
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.
FuseSchool
How To calculate Percentage Mass
In this video from our Chemical Calculation Series learn how to calculate Percentage Mass within a Chemical Formula.
Professor Dave Explains
IIT/JEE Chemistry Practice #26: Enthalpy of Combustion
Practice REAL problems from actual past IIT/JEE exams with Professor Dave!
Easy Languages
Mexican Food
Easy Languages is an international video project aiming at supporting people worldwide to learn languages through authentic street interviews and expose the street culture of participating partner countries abroad. Episodes are produced...
Catalyst University
Osmotic Pressure | Example #1
In this video, we discuss osmotic pressure by working an example.
msvgo
Expressing concentration of solutions
It describes the concentration of the solution in terms of mass percentage, volume percentage, parts per million and mole fraction.