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Product 12484

By: The Flinn Staff

The Acid–Base Titrations Classic Lab Kit for AP® Chemistry provides the recommended familiarity with the titration process using indicators and pH meters. This three-part laboratory will truly test students’ adherence to lab procedures.

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Classic AP Requirement #6—Standardization of a Solution Using a Primary Standard
Classic AP Requirement #7—Determination of Concentration by Acid–Base Titration, Including a Weak Acid or a Weak Base

In this three-part laboratory, a basic solution is first standardized against a known solid acid (KHP). This standardized base solution is then titrated against an unknown acid solution to determine the acid solution’s molarity. In the third part, the Ka of the solid acid KHP is calculated from the data of the titration curve obtained from plotting the pH of the solution versus the volume of NaOH solution added. The lab provides the recommended familiarity with the process of titration using indicators and pH meters.

Complete for 24 students working in pairs.

Acid–Base Titrations Inquiry Guidance and AP® Chemistry Curriculum Alignment Transition Guide available! Follow the link in Resources to find this valuable publication that lets you adapt this classic AP Chemistry experiment for guided-inquiry and correlate with the AP Chemistry curriculum framework.

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
Obtaining, evaluation, and communicating information

Disciplinary Core Ideas

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

Crosscutting Concepts

Patterns
Cause and effect
Scale, proportion, and quantity
Systems and system models
Stability and change

Performance Expectations

HS-PS1-2. Construct and revise an explanation for the outcome of a simple chemical reaction based on the outermost electron states of atoms, trends in the periodic table, and knowledge of the patterns of chemical properties.
HS-PS1-7. Use mathematical representations to support the claim that atoms, and therefore mass, are conserved during a chemical reaction.