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Product 17087

By: The Flinn Staff

Students will have fun solving the vinegar mix-up at the factory! Using acid–base titration, your students will solve a mystery of mixed up barrels!

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Product Details

Students will have fun solving the vinegar mix-up at the factory! A common question chemists have to answer is how much of a specific acid or base is present in a product. Using acid–base titration, your students will solve a mystery of mixed up barrels! Several barrels of vinegar were mixed up and mislabeled. The factory needs students to determine the percentage of vinegar in the barrels and correctly label each container. The lab begins with students preparing and standardizing the sodium hydroxide solution. Once the concentration of the base is known, students are then challenged to identify the concentrations of vinegar samples. Use this colorful and engaging activity to help teach acid–base titration! 

Complete for 30 students working in pairs.

Correlation to Next Generation Science Standards (NGSS)

Science & Engineering Practices

Asking questions and defining problems
Developing and using models
Planning and carrying out investigations
Analyzing and interpreting data
Using mathematics and computational thinking
Constructing explanations and designing solutions
Obtaining, evaluation, and communicating information

Disciplinary Core Ideas

MS-PS1.B: Chemical Reactions
HS-PS1.A: Structure and Properties of Matter
HS-PS1.B: Chemical Reactions

Crosscutting Concepts

Systems and system models

Performance Expectations

MS-PS1-2. Analyze and interpret data on the properties of substances before and after the substances interact to determine if a chemical reaction has occurred.
MS-PS1-5. Develop and use a model to describe how the total number of atoms does not change in a chemical reaction and thus mass is conserved.
HS-PS1-7. Use mathematical representations to support the claim that atoms, and therefore mass, are conserved during a chemical reaction.