Chemistry Collective
Chem Collective: Gravimetric Determination of Arsenic
Set in the context of ground water contamination in Bangladesh, this stoichiometry and analytical chemistry activity examines the issues around identifying wells contaminated with arsenic. In this activity, students perform a gravimetric...
Carnegie Mellon University
Chem Collective: Dna Binding Dyes Scenario
This activity explores the equilibrium of dyes that self-assemble into DNA templates. Students use knowledge of equilibrium and quantitative spectroscopy to explore different dyes that bind selectively to DNA molecules. In this activity,...
Carnegie Mellon University
Chem Collective: Meals Ready to Eat
While camping on the Appalachian Trail, a storm dampens all the fire wood and you must design a chemical reaction to heat your meal. In this activity, students design an experiment in the virtual lab to determine the heat of reaction for...
Chemistry Collective
Chem Collective: Determining Stoichiometric Coefficients
Students use the virtual lab to determine how four unknown substances react with each other including their stoichiometric coefficients. In this randomized activity, each student receives a different reaction and students can check their...
Chemistry Collective
Chem Collective: Glucose Dilution Problem
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...
Chemistry Collective
Chem Collective: Acid Dilution Problem
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...
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...
Chemistry Collective
Chem Collective: Making Stock Solutions From Solids
In this activity, students use the virtual lab to create stock solutions starting from solid salts. Students must first calculate the correct amount of solid to make the solution. Next, they prepare the solution using the appropriate...
Chemistry Collective
Chem Collective: Identifying the Unknown Metal
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.
Chemistry Collective
Chem Collective: Identifying an Unknown Liquid From Its Density
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.
Chemistry Collective
Chem Collective: Determining Stoichiometric Coefficients
In this activity, students use the virtual lab to determine how four unknown substances react with each other including their stoichiometric coefficients.
Chemistry Collective
Chem Collective: Textbook Style Limiting Reagents Problems
Textbook-style practice limiting reagent exercises with that can be used as a way to "predict and check" your answers using the virtual lab.
Chemistry Collective
Chem Collective: Determination of the P H Scale
This virtual lab activity where students perform the method of successive dilutions using HCl, NaOH, a pH meter, and universal indicator solution to help understand the logarithmic nature of the pH scale.
Chemistry Collective
Chem Collective: Determining the P Ka and Concentration Ratio
Use the virtual lab to determine the pKa of a protein then create a buffer solution with a specific concentration ratio of the protein in its protonated/ unprotonated form.
Chemistry Collective
Chem Collective: Unknown Concentration of Dna Solution Problem
In this advanced limiting reagent problem, students use the virtual lab to determine the concentration of a solution of DNA by reacting it with known amounts of a fluorescent dye which binds to the DNA.
Chemistry Collective
Chem Collective: Determining the Solubility Product
Determine the solubility product constatnt (Ksp) for various solids with this virtual lab.
Chemistry Collective
Chem Collective: Determining the Solubility of Copper Chloride
Given the solubility of CuCl at two different temperatures, predict its solubility at a third temperature. Then test your prediction by creating the solution in the virtual lab.
Chemistry Collective
Chem Collective: Coffee Problem
Use the virtual lab to determine how much milk to add to hot coffee to reach the desired temperature
Chemistry Collective
Chem Collective: Strong Acid and Base Problems
Textbook-style strong acid and base problems that can be checked using the Virtual Lab.
Chemistry Collective
Chem Collective: Weak Acid and Base Problems
Textbook-style weak acid and base problems that can be checked using the Virtual Lab.
Chemistry Collective
Chem Collective: Determine the Concentration of Acetic Acid in Vinegar
A virtual lab where students determine the concentration of acetic acid in vinegar using a 0.110 M NaOH standard solution and an acid-base indicator, phenolphthalein.
Concord Consortium
Concord Consortium: Stem Resources: Melting Ice
Using temperature probes, students will monitor the temperature of melting ice cubes in different situations. This lab activity, allows students to view the procedure and answer questions online that can be saved and evaluated by the...
Dartmouth College
Dartmouth College: Chem Lab: Vacuum Filtration
Vacuum filtration is a technique for separating a solid product from a solvent or liquid reaction mixture. This comprehensive site addresses setting up and performing vacuum filtration.
Royal Society of Chemistry
Royal Society of Chemistry: Kitchen Chemistry: Salt and the Boiling Point [Pdf]
An experiment where students test how the boiling point of water is affected by adding salt. The experiment is well laid out with pictures that show how to perform the experiment.
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