Professor Dave Explains
Practice Problem: Enthalpy of Combustion
Stoichiometry for combustion? You bet! If we know about moles, we can calculate energy changes. Give it a try!
Curated Video
Law Of Constant Composition
Learn the basics about the law of constant composition and how to apply it. The law of constant composition states that in a given chemical compound, all samples are made up of the same elements combined in the same proportions. So what...
Catalyst University
Kd, the Dissociation Constant: What is it?
Kd, the Dissociation Constant: What is it?
Catalyst University
General Chemistry | Ideal Gas Law (PV=nRT) [Example #1]
In this video, we will do an example calculation using the ideal gas equation of state, PV=nRT. [Solving for volume, V]
Professor Dave Explains
Practice Problem: Density of a Gas
If we can use the ideal gas law to find the molar mass of a gas and therefore identify the gas, what can we do with the density of a gas? Well, pretty much the same thing, it just involves one extra calculation, so let's give it a try!
Professor Dave Explains
IIT/JEE Chemistry Practice #24: Molar Mass of a Gas
Practice REAL problems from actual past IIT/JEE exams with Professor Dave!
Professor Dave Explains
IIT/JEE Chemistry Practice #22: Density of a Gas
Practice REAL problems from actual past IIT/JEE exams with Professor Dave!
Bozeman Science
Synthesis and Decomposition Reactions
Atoms or molecules combine to form a new compound in a synthesis reaction. Examples include the addition of oxygen to magnesium metal to create magnesium oxide and the addition of carbon dioxide to water to crete carbonic acid. A combine...
Professor Dave Explains
Practice Problem: Gravimetric Analysis
What the heck is gravimetric analysis? Well let's say we want to know how much of a substance is in some mixture. We could toss it in solution and cause it to form a precipitate with some other ion in solution. We can measure the mass of...
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.
Curated OER
Stoichiometry
Sal introduces students of chemistry to "Stoichiometry," which is the calculation of measureable relationships of the reactants and products in a chemical reaction. Sal sets up a balanced chemical equation and then, using the Periodic...
Curated OER
Stoichiometry Example Problem 1
The reaction of Phosphorus and Chlorine is the focus of this video on Stoichiometry. Sal sets up a reaction between the two substances, and uses the process of Stoichiometry in order to calculate how many grams of Phosphorus Trichloride...
JFR Science
Solution Stoichiometry: How Much Vinegar Is Needed to Clean My Teapot?
Solution stoichiometry ... reducing waste, one calculation at a time. Chemistry scholars examine the concepts and calculations involved in solution stoichiometry with a video from JFR Science. The narrator gives examples of when to use...
Berkeley University of California
Stoichiometry
Can you say stoichiometry five times quickly? Watch an informative video to learn the basics of stoichiometry, including how to pronounce it. Viewers also learn the relationship between the number of grams, number of moles, and number of...
Socratica
Chemistry: Intro to Stoichiometry with Grilled Cheese Sandwiches
What do grilled cheese sandwiches have to do with chemistry? Show your class the answer and introduce them to stoichiometry using an intriguing video from the Socratica chemistry playlist. Through an easy example—making a grilled cheese...
JFR Science
Gas Stoichiometry: How Does an Airbag Work?
Airbags save lives ... and combining the Gas Laws and stoichiometry saves time. Find out how airbags inflate using a video from JFR Science. Topics covered include the Ideal Gas Law, standard temperature and pressure, and how to combine...
Educreations
Stoichiometry Practice
Build a solid understanding of reactants used and products produced in a chemical reaction with a lesson that begins with a basic stoichiometry problem and advances to questions involving limiting reactants and percent yields.
Socratica
Chemistry: Stoichiometry Part 2—Mass to Mass Conversions
The term stoichiometry derives from the Greek words stoicheion meaning element and metron meaning measure. The second Socratica video in a two-part series within a larger chemistry playlist introduces more complex stoichiometry problems....
Teacher's Pet
Stoichiometry
Moles, grams, particles, volume ... how do I keep them all straight? Help pupils sort out the terms and calculations used in stoichiometry with a video tutorial. Topics include mole ratios, molar mass, molar volume, and common...
Crash Course
Stoichiometry: Chemistry for Massive Creatures
Moles exist in chemistry? These are not animals that live underground and dig through your gardens — they are quantities of elements. Learn about moles and how they help chemists determine amounts of substances (from atomic mass to grams).
Curated OER
Stoichiometry
To understand the concept of stoichiometry, this class uses s'mores as an analogy. They compute the number of s'mores they can make based on the stoichiometric formula. Learners then apply this concept to how it is typically used in...
JFR Science
Limiting and Excess Reagents
Sometimes things are just left over. An informative video in the JFR Science series highlights limiting and excess reactants in a chemical reaction. It explains the process of solving stoichiometry problems with limiting reactants.
Teacher's Pet
Molar Conversions
Start stoichiometry scholars off on the path to success with a short video. The narrator of this interesting video guides viewers through the concepts of the mole, molar mass, and Avogadro's number. Additional topics include converting...
Teacher's Pet
Arithmetic of Equations
Every great chemistry teacher has a stoichiometry toolbox full of lessons designed to chisel away at misconceptions and confusion. It's time to make room for something new! Incorporate a brief but detailed video that walks junior...
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