Khan Academy
Khan Academy: Molarity, Molality, Osmolarity, Osmolality, and Tonicity What's the Difference?
See how each of these terms tells us something different about a solution.
Texas Instruments
Texas Instruments: Molar Gas Lab
Students use stoichiometry to determine the mass of oxygen gas in a bottle. They may also check their answer against the amount of potassium chloride produced during the reaction.
Dartmouth College
Dartmouth College: Chem Lab: Calorimetry 1 Enthalpy of Formation of Mg O
In this lab experiment students are asked to determine the standard molar enthalpy of formation of magnesium oxide, MgO. Students are asked to use Hess's Law and the enthalpy changes of several other solution reactions during this...
Chiral Publishing
Chiral Publishing: An Introduction to Chemistry: Molarity and Equation Stoichiometry: Audio Book
This audio book, narrated by author Mark Bishop, describes how to use equation stoichiometry for reactions that are in a solution. Many examples are shown, and general steps to complete the problems are given.
CK-12 Foundation
Ck 12: The Mole Concept
[Free Registration/Login may be required to access all resource tools.] In the following online tutorial students will identify three methods for measuring the amount of matter in a sample. They will define the mole and its relationship...
CK-12 Foundation
Ck 12: Solution Concentration
[Free Registration/Login may be required to access all resource tools.] Students will calculate the concentration of solutions in units of molarity, and use molarity to calculate the dilutions of solutions.
CK-12 Foundation
Ck 12: Mass and the Mole
[Free Registration/Login may be required to access all resource tools.] In the following online tutorial students will use molar mass to make conversions between mass and moles of a substance and they will also use the mole road map to...
CK-12 Foundation
Ck 12: Percent Composition and Empirical & Molecular Formulas
[Free Registration/Login may be required to access all resource tools.] In this online tutorial students will learn to calculate the percent composition of a compound either from mass data or from the chemical formula. They will use...
CK-12 Foundation
Ck 12: Ideal Gases and Gas Stoichiometry
[Free Registration/Login may be required to access all resource tools.] In the following online tutorial students will learn the Ideal Gas Law, and know which of the different values for the ideal gas constant to use in a given...
CK-12 Foundation
Ck 12: Gas Mixtures and Molecular Speeds
[Free Registration/Login may be required to access all resource tools.] The following online tutorial helps students use Dalton's Law and mole fraction to calculate the partial pressure of a gas in a mixture. They will learn to calculate...
Chemistry Collective
Chem Collective: Cola and Sucrose Concentration Problem
In this activity, students use the virtual lab to prepare a sucrose solution for a soda recipe. They next calculate the concentration of their solution in terms of molarity, percent mass and density. Finally, they compare the density of...
Chem4kids
Chem4 Kids: Symbols in Chemical Equations
Chem4Kids! provides an overview of the symbols representing numerical values in chemical equations. Each symbol is defined and described.
Texas Instruments
Texas Instruments: Designing Hot and Cold Packs
in this activity, students calculate the molar enthalpy of dissolving for three ionic solids, and use this information to design a cold pack. In this experiment they measure the heat changes which occur from various salts dissolving in...
University of Manchester
Children's University of Manchester: Teeth and Eating: Types of Teeth
There are many different types of teeth in your mouth. Learn about incisors, canines, premolars, molars, and wisdom teeth as well as the difference between your primary (or baby) teeth and your permanent teeth.
TED Talks
Ted: Ted Ed: How Did Teeth Evolve?
Peter S. Ungar traces the evolution of mammalian molars from primitive cone-like structures to the myriad forms of today's species, from lions to cows to people.
Simon Fraser University
Chem1 Virtual Textbook: Moles and Their Uses
As part of the "Basic Atomics" section of the Virtual Textbook, this site examines moles. The information presented defines moles in relation to Avogadro's number and then goes on to describe molar mass and molar volume.
Texas Instruments
Texas Instruments: Mole Activity
This activity is intended to help students gain an understanding of the mole concept. By determining the molar mass of the element at each station, students will be able to identify the element. Students will learn that the molar mass of...
Texas Instruments
Texas Instruments: Titration Experiment
This activity is a fast and safe microscale experiment which allows students to quickly determine the molarity of three weak acids (vinegar, soda, and citric acid). Since the process involves a monoprotic, diprotic, and a triprotic acid,...
Texas Instruments
Texas Instruments: Acidity Worksheet
Students will use acidity to calculate molarity using this TI-InterActive worksheet.
Texas Instruments
Texas Instruments: Cell Sheet App
Students use the CellSheet App to enter data and text in cells, create cell formulas and use built-in functions. Student explore the utility of this App in science classes, such as Chemistry and Biology. They calculate the molarity of a...
Chiral Publishing
Chiral Publishing: An Introduction to Chemistry: Relating Mass to Number of Particles: Audio Book
This slide and audio book shows how to relate mass to a number of particles by using many formulas, examples, and real life scenarios. View the weighted average calculations, Avogadro's number, the atomic mass of carbon, and molar mass.
CK-12 Foundation
Ck 12: Chemistry Simulation: Mole Carnival
[Free Registration/Login Required] In the mole carnival, students count the number of atoms and particles in different objects found at the carnival. As students work to find the number of particles, they practice counting particles by...
Sophia Learning
Sophia: Converting From Mass to Particles Using a Balanced Chemical Equation
A narrated screencast explaining how to use a balanced chemical equation to determine the number of particles of a substance given the starting mass of another substance. [4:46]
Sophia Learning
Sophia: Chemical Reactions: Stoichiometry
This lesson on stoichiometry demonstrates how to use a balanced chemical equation to determine the mass of a product given the starting mass of a reactant. [7:55]
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