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Lab Resource
Pingry School

Determination of the Molar Mass of an Unknown Acid

For Students 9th - 12th Standards
Acids and bases have a love-hate relationship. They balance each other so nicely, but they are complete opposites! Learners use these concepts and titration to calculate the molar mass of an unknown substance. The experiment document...
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Lesson Plan
Curated OER

Moles Lab Activities

For Teachers 9th - 12th
General chemistry class members engage in a mini-unit on mole conversions. Through nine lab activites with varying degrees of difficulty, they practice measuring mass and volume, molar calculations, and stoichiometry. Terrific teacher...
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Activity
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 differences in...
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Activity
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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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Lesson Plan
Curated OER

Everything You Ever Wanted To Know About Hot Wire Chemical Vapor Deposition, But Were Afraid To Ask

For Teachers 10th - 12th
To wrap up your year of general chemistry, have lab groups compete in a tot wire chemical vapor deposition (HWCVD) competition. With their foundation in chemical nomenclature, stoichiometry, and gas laws, each group completes several...
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Lesson Plan
Santa Monica College

The Composition of Potassium Chlorate

For Teachers 9th - Higher Ed Standards
The third activity in a series of 11 begins by using thermal decomposition of potassium chlorate to determine the mass percent of oxygen. Then a second activity allows scholars to demonstrate that the resulting residue is from a...
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Lesson Plan
Santa Monica College

Titration of Vinegar

For Teachers 9th - Higher Ed Standards
Titration calculations require concentration. The 10th lesson plan in an 11-part series challenges young chemists to use titration in order to determine the molarity and mass percent in concentrated vinegar. Analysis questions encourage...
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Lesson Plan
Virginia Department of Education

Formulas and Percent Compositions of Ionic Compounds

For Teachers 9th - 12th Standards
Try not to blind anyone with science by following the safety rules. The lesson encourages scholars to form an ionic compound from magnesium and chlorine. Then they determine the empirical formula and determine the mole ratio and percent...
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Lesson Plan
Cornell University

Polymers: Making Silly Putty

For Teachers 3rd - 8th Standards
Putty is proof that learning can be fun! Share the wonderful world of polymers with your class through an experiment. Young scientists create their own silly putty, then examine its properties.
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Lesson Plan
Virginia Department of Education

Aspirin Analysis

For Teachers 9th - 12th Standards
Laughter may be the best medicine, but aspirin is also important. Young chemists analyze aspirin tablets using titration in this lab experiment. They then repeat the entire experiment using a different aspirin brand. 

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