In this activity, students use the virtual lab to create 500mL of 3M HCl solution from a concentrated stock solution of 11.6M HCl. They must first calculate the correct volumes of 11.6M HCl solution and water to mix together to create the final solution. Next, they prepare the solution using the appropriate glassware, and then can check their answer using the concentration viewer in the solution info panel.

Practical lab into the chemical reaction between calcium carbide and water and the resulting ignition of acetylene gas.

Students act as engineers to learn about the strengths of various epoxy-amine mixtures and observe the unique characteristics of different mixtures of epoxies and hardeners. Student groups make and optimize thermosets by combining two chemicals in exacting ratios to fabricate the strongest and/or most flexible thermoset possible.

This course applies the concepts of reaction rate, stoichiometry and equilibrium to the analysis of chemical and biological reacting systems, derivation of rate expressions from reaction mechanisms and equilibrium or steady state assumptions, design of chemical and biochemical reactors via synthesis of chemical kinetics, transport phenomena, and mass and energy balances. Topics covered include: chemical/biochemical pathways; enzymatic, pathway, and cell growth kinetics; batch, plug flow and well-stirred reactors for chemical reactions and cultivations of microorganisms and mammalian cells; heterogeneous and enzymatic catalysis; heat and mass transport in reactors, including diffusion to and within catalyst particles and cells or immobilized enzymes.

We are now going to delve into the heart of chemistry. We learn ways of representing molecules and how molecules react. To do this, we'll even think about "how many" of a molecule we have using a quantity called a "mole".

This collection of videos, animations and documents comes from the NCSSM AP chemistry online course. Chapter six provides practice and demonstrations related to stoichiometry chemistry.

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.

The fundamental concepts of inorganic chemistry including the physical and chemical properties of matter, atomic structure, chemical bonding, stoichiometry, the gas laws, solutions, acids and bases, redox reactions, and chemical equilibria. The laboratory includes an experimental study of the chemical principles. 3 hours lecture/3 hours laboratory.

This activity is a lab designed for students to combust magnesium and use results to explain oxidation/reduction reactions.

This activity allows the student to access a webpage that provides examples of stoichiometry using terminology and objects they use in their everyday life. This activity can help a student make a connection between the complex chemical concept of stoichiometry and their current knowledge.

The Virtual Lab is an online simulation of a chemistry lab. It is designed to help students link chemical computations with authentic laboratory chemistry. The lab allows students to select from hundreds of standard reagents (aqueous) and manipulate them in a manner resembling a real lab.

Simulations:

• Default Virtual Lab Stockroom
• Stoichiometry
• Glucose Dilution Problem
• Acid Dilution Problem
• Cola and Sucrose Concentration Problem
• Making Stock Solutions from Solids
• Identifying the Unknown Metal (Metals Density Problem)
• Identifying an Unknown Liquid from its Density
• Alcohol Density Problem
• Gravimetric Determination of Arsenic
• Determining Stoichiometric Coefficients
• Stoichiometry and Solution Preparation Problem
• Textbook Style Limiting Reagents Problems
• Textbook Style Limiting Reagents Problem II
• Predicting DNA Concentration
• Unknown Concentration of DNA Solution Problem
• Thermochemistry
• Camping Problem I
• Camping Problem II
• ATP Reaction (Thermochemistry and Bonding)
• Determining the Heat of Reaction in Aqueous Solution
• Coffee Problem
• Measuring the heat capacity of an engine coolant
• Measuring the heat capacity of an engine coolant II (Advanced version)
• Camping Problem III
• Heats of Reaction - Hess' Law
• Equilibrium
• Cobalt Chloride and LeChatlier’s Principle
• DNA Binding Problem
• Acid-Base Chemistry
• Strong Acid and Base Problems
• Determination of the pH Scale by the Method of Successive Dilutions
• Weak Acid and Base Problems
• Determining the pKa and Concentration Ratio of a Protein in Solution
• Unknown Acid and Base Problem
• Creating a Buffer Solution
• DNA - Dye Binding: Equilibrium and Buffer Solutions
• Determining the pKa and Concentration Ratio of a Protein in Solution
• Standardization of NaOH with a KHP solution: Acid Base Titration
• Solubility
• Determining the Solubility Product
• Temperature and the Solubility of Salts
• Determining the solubility of copper chloride at different temperatures
• Oxidation/Reduction and Electrochemistry
• Exploring Oxidation-Reduction Reactions
• Analytical Chemistry/Lab Techniques
• Standardization of NaOH with a KHP solution: Acid Base Titration
• Unknown Silver Chloride

This activity is an inquiry lab where students observe the effects of temperature change on nitrogen dioxide gas, a common component of polluted air, to determine its color.

In this activity, students use the virtual lab to create a 0.025M glucose solution from a standard 1M glucose solution. First, they calculate the correct volumes of 1M glucose solution and water to mix together to create the final 0.025M solution. Next, they prepare the solution using the appropriate glassware. Students can check to see if their procedure was correct using the concentration viewer in the solution info panel.

This inquiry lab activity allows the students to explore limiting reagents with a simple acid and base reaction.

In this activity students use the virtual lab to design an experiment to determine the identity of mislabeled bottles using the densities of the solutions inside.

In this activity, students use the virtual lab to identify an unknown metal by measuring its density and comparing their measurements to the densities of known metals.

Students learn about material balances, a fundamental concept of chemical engineering. They use stoichiometry to predict the mass of carbon dioxide that escapes after reacting measured quantities of sodium bicarbonate with dilute acetic acid. Students then produce the reactions of the chemicals in a small reactor made from a plastic water bottle and balloon.

This lesson is full of information, practice problems, and more, all with the purpose of introducing your students to the concept of stoichiometry. From an introduction presentation to an assignment to assess your students' understanding, this lesson will help your students to gain a thorough understanding of this scientific process. Start with the presentation, then have your students watch the "Stoichiometry in Action" videos (in numerical order), then end with the assessment. Thanks, and have fun!

Stoichiometry is the quantitative relationship between the number of moles of reactants and products in chemical reactions. This lesson will show students how to identify mole ratios in balanced equations and how to solve stoichiometry problems.