Item #: AP9083
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.
Materials Included in Kit:
Phenolpthalein solution, 1%, 100 mL
Potassium bitartrate, 25 g
Potassium hydrogen phthalate, 25 g
Sodium hydroxide, 1 M, 350 mL
Additional Materials Required (for each lab group): 0.001- or 0.0001-g precision balance to share, beakers, pH 7 buffer solution, burets, buret clamps, desiccator, distilled or deionized water, Erlenmeyer flasks, funnels, graduated cylinder, magnetic stirrers and stir bars, pH meters, support stands, volumetric flask, wash bottles, weighing dishes.
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