Classroom Resources: Solutions
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Solubility, Solubility Rules, Concentration, Molarity, Reactions & Stoichiometry, Stoichiometry  High School
Lab: The Gravimetric Analysis of Lead in Contaminated Water
In this lab, students will perform a gravimetric analysis of a simulated water sample contaminated with “lead”. Using their knowledge of solubility and chemical reactions they will precipitate the “lead” from the water sample. Then from the data collected, they will calculate the concentration of “lead” in their samples and compare that value to those found in water samples from the Flint, Michigan water crisis.

Concentration, Solubility, Molarity, Chemistry Basics, Graphing  High School
Activity: Concentration and Solubility
In this activity, students will use news articles and EPA publications to compare Federal drinking water regulations to the concentrations found in Flint, Michigan. Students are introduced to the unit parts per billion (ppb) and compare it both conceptually and mathematically to molarity. As a group, students use data to compare the solubility of various lead salts and perform solubility calculations.

Concentration, Precipitate, Molarity, Molality, Conductivity, Colligative Properties, Boiling Point Elevation, Freezing Point Depression, Distillation, Culminating Project, Graphing, Accuracy, Error Analysis, Interdisciplinary, Mixtures, pH, Buffers, Boiling Point, Freezing Point, Phase Changes  High School
Lesson Plan: Investigating Sea Water
In this lesson, students will consider their water footprint and means to obtain fresh water from seawater using a solar still. To understand the differences between fresh water and seawater, students will determine the composition of artificial seawater by using qualitative analysis to test for different ions in solution and calculate the molarity of different salts used in the recipe. Students will observe the effects of solutes in aqueous solutions by measuring conductivity and the freezing and boiling points of seawater and deionized water and determine total dissolved solids. In addition, students explore the buffering ability of seawater and the effect of carbon dioxide on its pH.

Reduction, Redox Reaction, Reduction Potentials, Galvanic Cells, Oxidation, Half Reactions, Cathode, Anode, Electron Transfer, Electrons, Concentration, Molarity, Net Ionic Equation, Nernst Equation  High School
Simulation: Galvanic/Voltaic Cells 2
In this simulation, students can create a variety of standard and nonstandard condition galvanic/voltaic cells. Students will choose the metal and solution for each half cell, as well as the concentration of those solutions. They can build concentration cells and other nonstandard cells, record the cell potential from the voltmeter, and observe the corresponding oxidation and reduction half reactions.

Galvanic Cells, Reduction Potentials, Redox Reaction, Half Reactions, Electrons, Electron Transfer, Anode, Cathode, Oxidation, Reduction, Concentration, Net Ionic Equation, Molarity, Nernst Equation  High School
Activity: Simulation Activity: NonStandard Galvanic Cells
In this activity, students will use a simulation to create a variety of nonstandard condition galvanic/voltaic cells. This simulation allows students to choose the metal and solution for each half cell, as well as the concentration of those solutions. Students will build concentration cells and other nonstandard cells and record the cell potential from the voltmeter. They will compare the results of different data sets, write net ionic equations, and describe electron flow through a galvanic/voltaic cell from anode to cathode as well as the direction of migration of ions, anions towards the anode and cations towards the cathode.

Significant Figures, Measurements, Beer's Law, Concentration, Molarity  High School
Lab: Investigating Shades of Blue
In this lab investigation, students will create a copper(II) nitrate solution. Each group will be given a different measurement device in order to see how the accuracy of the preparation of the solution is affected by the limitations of the measurement device. The goal is for students to have a true understanding of why significant figures are important.

Solubility, Intermolecular Forces, Molarity  High School
Activity: Solutions Escape Room
In this activity, students will review concepts covered in a solutions unit. They will complete problems in order to determine codes that will allow them to advance through stages of a Google Form, which is set up as an escape room. This activity is designed to be used at the end of a unit, or as an alternate to an exam, particularly in a virtual environment.

Molarity, Concentration, Solute & Solvent  High School
Simulation: Preparing Solutions
In this simulation, students will complete a calculation in order to
determine either the molarity of solution, volume of solution, or mass of solute needed. Additionally the associated particle diagram for the solution will be displayed to help students better visualize the solution at the particulate level. Finally, students will gain familiarity with the proper lab techniques for preparing a solution as they are lead through a stepbystep animated process demonstrating this procedure. 
Molarity, Concentration, Solute & Solvent  High School
Activity: Simulation Activity: Preparing Solutions
In this simulation, students will complete a calculation in order to determine the value of an unknown variable related to a described solution and then they will observe an animation of the solution being prepared. The calculation will require the student to determine either the molarity of solution, volume of solution, or mass of solute needed. Additionally the associated particle diagram for the solution will be displayed to help students better visualize the solution at the particulate level. Finally, students will gain familiarity with the proper lab techniques for preparing a solution as they are lead through a stepbystep animated process demonstrating this procedure. The simulation is designed as a five question quiz for students to use multiple times.

Balancing Equations, Classification of Reactions, Chemical Change, Identifying an Unknown, Molarity, Concentration  High School
Lab: An Environmental Impact Study
In this lab, students will test a water sample which comes from a local zoo, where, it is reported that many bird eggs are not hatching. Students will test the water for the presence of multiple ions. Once the type of ion in the water is determined, students will write balanced equations to illustrate their findings. Students will also conduct a serial dilution to determine the concentration, or molarity, of the ion in the water sample. This molarity will be compared to known values to determine if the materials in the water are at an unhealthy level.

Acid & Base Theories, Strong vs Weak, Indicators, Titrations, Buffers, Concentration, Molarity, Net Ionic Equation  High School
Lesson Plan: Acids and Bases 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 topic of acids and bases to your students.

Solubility, Solute & Solvent, Molarity, Solubility Rules, Net Ionic Equation, Intermolecular Forces, Beer's Law  High School
Lesson Plan: Aqueous Solutions 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 Aqueous Solutions to your students.

Molarity, Concentration, Molality  High School
Activity: Particle Level Molarity
In this activity, students are introduced to molarity at the particle level. Students will activate their prior knowledge by demonstrating their understanding of concentration by preparing several KoolAid drinks, and then applying that information at the particle level to various models.

Titrations, Indicators, Molarity, Concentration  High School
Demonstration: How to Perform a Titration
In this demonstration, the teacher will show how a titration is setup and performed. Also, the teacher will utilize different indicators to show how they work and why they are necessary. At the end of the demonstration, the teacher will also explain how to calculate the molarity of the unknown substance.

Beer's Law, Molarity, Concentration  High School
Lab: Beer's Law Discovered
In this laboratory investigation, students will explore the concepts of light absorption, transmittance, and the relationship between absorbance, path length, and concentration of solution.

Molarity, Concentration, Mole Concept  High School
Demonstration: What Is a 1 Molar Solution?
In this demonstration, students will determine the molarity of several different solutions demonstrated by the teacher.

Limiting Reactant, Percent Yield, Stoichiometry, Balancing Equations, Net Ionic Equation, Concentration, Molarity, Precipitate, Solubility, Dimensional Analysis, Mole Concept, Observations, Graphing, Separating Mixtures, Identifying an Unknown  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.

Calorimetry, Exothermic & Endothermic, Temperature, Stoichiometry, Limiting Reactant, Chemical Change, Molarity, Enthalpy, Heat, Concentration, Experimental Design, Scientific Method  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.

Titrations, Concentration, Indicators, Acid Base Reactions, Equivalence Point, Molarity  High School
Lab: Lethal Dose
In this lab, students will perform several titrations to calculate the concentration of potentially “lethal” medicycloprophic solutions.

Molarity, Concentration, Saturated/Unsaturated/Supersaturated, Mole Concept, Dimensional Analysis, Stoichiometry, Balancing Equations  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.

Titrations, Acid Base Reactions, Indicators, Chemical Change, Stoichiometry, Balancing Equations, Concentration, Molarity, Error Analysis, Dimensional Analysis, Measurements  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.

Titrations, Equivalence Point, Indicators, Acid Base Reactions, Chemical Change, Salts, Molarity, Reaction Rate, Order of Reaction , Error Analysis  High School
Lab: Titration Lab with Kinetics
In this lab, students calculate the molarity of an unknown using a titration and also by solving for a dilution.

Identifying an Unknown, Culminating Project, Classification of Reactions, Experimental Design, Scientific Method, Interdisciplinary, Review, Balancing Equations, Stoichiometry, Concentration, Molarity  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.

Stoichiometry, Dimensional Analysis, Mole Concept, Gas Laws, Ideal Gas, Molarity, Concentration, Electrolysis, 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.

Heat of Neutralization, Acid Base Reactions, Exothermic & Endothermic, Temperature, Specific Heat, Calorimetry, Bond Energy, Net Ionic Equation, Molarity, Dimensional Analysis, Measurements, Mole Concept  High School
Lab: Heat of Neutralization
In this lab, students carry out an acidbase reaction to calculate the heat of neutralization based on experimental data. This lab will reinforce the concepts of exothermic and endothermic processes, system and surroundings, and heat of reaction (specifically, neutralization).