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Teach Engineering

Flame Test: Red, Green, Blue, Violet?

For Teachers 10th - 12th Standards
Let the true colors shine through. Pupils conduct a flame test to identify an unknown element. Class members calculate and prepare specific molarity solutions of three chemicals. Using their observations of the colors emitted, they...
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Royal Society of Chemistry

Mass Changes in Chemical Reactions—Microscale Chemistry

For Teachers 6th - 10th Standards
What better way is there to introduce conservation of mass than a few simple experiments? Young chemists conduct two chemical reactions, take the masses of reactants and products, then compare their results to determine...
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Chemistry Collective

Chem Collective: Creating a Stock Solution

For Students 9th - 10th
In this activity, students use the virtual lab to create dilute solutions from a concentrated stock solution of acids or bases. They must first calculate the correct volumes of concentrated acid solution and water to mix together to...
Activity
Chemistry Collective

Chem Collective: Cola and Sucrose Concentration Problem

For Students 9th - 10th
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...
Activity
Chemistry Collective

Chem Collective: Acid Dilution Problem

For Teachers 9th - 10th
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...
Activity
Chemistry Collective

Chem Collective: Determination of the P H Scale

For Students 9th - 10th
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.
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University of Colorado

University of Colorado: Ph Et Interactive Simulations: Beer's Law Lab

For Students 9th - 10th
An interactive simulation that teaches about Beer's Law, solutions, concentration, spectrophotometry, and more through observations to explore how much light is absorbed and transmitted with changes in thickness and color. This...
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Dartmouth College

Dartmouth College: Chem Lab: Calorimetry 1 Enthalpy of Formation of Mg O

For Students 9th - 10th
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...
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Texas Instruments

Texas Instruments: Titration Experiment

For Teachers 9th - 10th
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,...
Activity
Texas Instruments

Texas Instruments: Cell Sheet App

For Teachers 9th - 10th
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...
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University of Nebraska

Do Chem: Simple Heat of Acid Base Reaction

For Students 9th - 10th
A simple lab activity that allows good data collection on heat of solution.
Activity
Texas Instruments

Texas Instruments: Conductimetric Titration & Gravimetric Determination

For Teachers 9th - 10th
Students use a Conductivity Probe to measure change in conductivity during a chemical reaction and determine the equivalence point of the reaction They determine the mass of the product and calculate the molar concentration of the...