Classroom Resources: Reactions & Stoichiometry
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Stoichiometry, Limiting Reactant, Dimensional Analysis  High School
Lesson Plan: Map to Solving Limiting Reactant Problems
In this lesson, students will learn how to follow a stepbystep problem solving method for limiting reactant stoichiometry problems. This method can be particularly beneficial for students who struggle with completing these calculations.

Balancing Equations, Stoichiometry, Dimensional Analysis  High School
Lesson Plan: Stoichiometry of Air Bags
In this lesson, students will be introduced to the concept of gram to gram stoichiometry calculations. Students will be guided through a scenario regarding air bags and will be tasked with calculating the amount of gas (NaN3) that must be used to inflate a vehicle air bag to the correct size. Followup practice problems are also provided.

Stoichiometry, Conservation of Mass, Limiting Reactant, Mole Concept  High School
Animation: Limiting Reactant Animation
In this animation, students will visualize on the particulate level what happens in a limiting reactant problem. A number of limiting reactant scenarios are animated, including a simple example of how to build a bike to introduce the concept of limiting reactant. Conservation of mass is also demonstrated by calculating masses from the mole quantities of the reactants and products. **This video has no audio**

Stoichiometry, Limiting Reactant, Mole Concept, Dimensional Analysis, Scientific Method  High School
Lab: Limiting Reactants in Brownies
In this lesson, students will investigate the idea of limiting reactant using a brownie recipe.

Observations, Separating Mixtures, Balancing Equations, Percent Yield, Stoichiometry, Limiting Reactant, Mole Concept, Dimensional Analysis, Measurements, Error Analysis, Error Analysis  High School
Lab: Limiting Reactant Lab
In this lab, students react copper(II) chloride with aluminum to determine the limiting reactant. They then isolate one product to determine their percent yield.

Balancing Equations, Percent Yield, Stoichiometry, Limiting Reactant, Chemical Change, Dimensional Analysis, Acid Base Reactions, Error Analysis, pH  High School
Lab: Limiting Reactant in a Balloon
In this lab, students perform a reaction between acetic acid and sodium bicarbonate and determine the amount of product formed and the limiting reactant.

Observations, Balancing Equations, Stoichiometry, Limiting Reactant  High School
Lesson Plan: Limiting Reactant
This lesson is intended to be used as an introduction to the concept of limiting reactants.

Observations, Separating Mixtures, Solubility, Concentration, Precipitate, Identifying an Unknown, Molarity, Net Ionic Equation, Balancing Equations, Percent Yield, Stoichiometry, Limiting Reactant, Mole Concept, Dimensional Analysis, Graphing  High School
Lab: White Lab
In this lab, students use molarity concepts to review limiting reactant concepts mathematically, conceptually, and graphically. They can then carry out a follow up investigation to identify an unknown using concepts learned in the first investigation.

Balancing Equations, Stoichiometry, Conservation of Mass, Limiting Reactant  High School
Activity: Limiting Reactants using Particulate Diagrams
In this activity, students will gain practice drawing particulate diagrams to demonstrate stoichiometry and limiting reactants.

Concentration, Molarity, Stoichiometry, Limiting Reactant, Chemical Change, Exothermic & Endothermic, Calorimetry, Heat, Temperature, Scientific Method, Enthalpy, Experimental Design  High School
Lab: Less Than Zero
In this lab, students will investigate the endothermic reaction between baking soda and HCl. Students will consider stoichiometric ratios, molar concentrations, reaction scale, and calorimetry. The lab starts with a scripted reaction that uses given molar ratios, a glass beaker, and 2M HCl. They will witness a temperature drop of about 5 to 8 C. Students then adjust the experiment so they can achieve a temperature drop of more than 20 C.

Gas Laws, Catalysts, Combustion, Stoichiometry, Limiting Reactant, Enthalpy, Activation Energy, Energy Diagrams, Experimental Design  High School
Lab: Launching Rockets
In this lab, students create a stoichiometric mixture of hydrogen and oxygen gases to launch a soda bottle rocket.

Concentration, Molarity, Balancing Equations, Stoichiometry, Mole Concept, Dimensional Analysis, Saturated/Unsaturated/Supersaturated  High School
Lab: KoolAid
In this lab, students calculate grams of KoolAid powder required to make 3 different solutions of KoolAid (using the molar mass of sugar) with the following concentrations: 0.2 M, 0.5 M, and 1.0 M. Determine the concentration of properly prepared KoolAid through a taste test.

Concentration, Chemical Change, Molarity, Balancing Equations, Stoichiometry, Titrations, Indicators, Dimensional Analysis, Measurements, Acid Base Reactions, Error Analysis  High School
Lab: Vinegar Quality Control
In this lab, students will perform a titration of a vinegar sample to determine if it is it close to the concentration claimed on the bottle.

Observations, Inferences, Chemical Change, Stoichiometry, Conservation of Mass, Limiting Reactant, Chemical Change, Exothermic & Endothermic  High School
Demonstration: Introducing Limiting Reactants
In this demonstration, the teacher will perform a series of reactions between acetic acidvinegar and varying amounts of sodium bicarbonate baking sodain order to inflate several Ziploc bags. Students will observe the reactions and analyze the quantities of reactants used as well as the results in order to understand the concept of limiting reactants. Students will also determine if the reaction is an endothermic or exothermic process based on their observations.

Gas Laws, Percent Yield, Stoichiometry, Dimensional Analysis, Measurements, Error Analysis  High School
Lab: Ideal Gas Law
In this lab, students use the reaction of an antacid table with water to inflate a balloon. They then use the ideal gas law to determine the number of moles of gas produced by the reaction.

Density, Gas Laws, Density, Pressure, Temperature, Chemical Change, Balancing Equations, Stoichiometry, Chemical Change, Kinetic Molecular Theory, Dimensional Analysis, Ideal Gas, Volume, Graphing  High School
Lesson Plan: The Gas Laws Unit Plan
The AACT high school classroom resource library and multimedia collection has everything you need to put together a unit plan for your classroom: lessons, activities, labs, projects, videos, simulations, and animations. We constructed a unit plan using AACT resources that is designed to teach the Gas Laws to your students.

Concentration, Interdisciplinary, Review, Identifying an Unknown, Culminating Project, Molarity, Balancing Equations, Stoichiometry, Classification of Reactions, Scientific Method, Experimental Design  High School
Lab: The Culminating Unknown
In this lab, students identify an unknown from a list of 12 possible compounds by designing a procedure and using evidence to prove their claim. They must draw from knowledge gained throughout the year to properly develop a procedure to identify the unknown.

Balancing Equations, Stoichiometry, Limiting Reactant, Mole Concept, Dimensional Analysis, Molar Mass  High School
Activity: Sweet Stoichiometry Reactions
In this activity, students will use candy to investigate stoichiometry and molegram relationships in chemical equations, but could also be used to introduce the concept of limiting reactants.

Stoichiometry, Mole Concept, Dimensional Analysis  High School
Lesson Plan: How to do Stoichiometry Problems
In this lesson, students learn templates for performing stoichiometry problems. They then put the methods to the test with a practice worksheet.

Gas Laws, Concentration, Molarity, Stoichiometry, Electrolysis, Mole Concept, Dimensional Analysis, Ideal Gas, Electrons  High School
Lesson Plan: Stoichiometry Setup Method
In this lesson, students will learn how to follow a process of visual cues in combination with a stepbystep problem solving method for different types of stoichiometric problems. This method can be particularly beneficial for students who struggle with completing multistep calculations.

Solute & Solvent, Concentration, Molarity, Stoichiometry, Mole Concept, Dimensional Analysis, Tyndall Effect  High School
Activity: Solubility & Solutions
In this inquiry activity, students investigate types of solutions, identifying the solute and solvent, and classifying each solution. They them solve stoichiometry problems involving solutions of different concentrations.

Balancing Equations, Stoichiometry, Limiting Reactant, Mole Concept, Dimensional Analysis, Measurements  High School
Activity: S'more Stoichiometry
In this activity, students determine the number of graham crackers and chocolate pieces required to complete a “reaction” with a given quantity of marshmallows (the limiting reactant). They then use the same thought process with a problem involving a real chemical reaction.

Concentration, Molarity, Percent Yield, Stoichiometry, Classification of Reactions, Limiting Reactant, Chemical Change, Mole Concept, Dimensional Analysis  High School
Demonstration: First Day Review
In this demonstration, students see evidence of a chemical reaction.

Law of Definite Proportions, Molecular Formula, Stoichiometry, Classification of Reactions, Mole Concept, Dimensional Analysis  High School
Lab: Finding the Formula of Magnesium Oxide
In this lab, students will recognize that oxygen has mass and that heating can involve and increase in mass as an element reacts to become an oxide

Concentration, Precipitate, Net Ionic Equation, Balancing Equations, Stoichiometry, Limiting Reactant, Mole Concept, Dimensional Analysis  High School
Lab: Finding CO_{2} Mass in your Breath
In this lab, students will measure how much carbon dioxide they exhale by reacting their exhaled breath with limewater (calcium hydroxide solution). Students will practice writing balanced equations and completing masstomass stoichiometric calculations.