Item #: AP6454
In the Synthesis and Analysis of a Coordination Compound Classic Lab Kit for AP* Chemistry, students use ratios of absorbance to identify compounds, providing them with practice in synthesis techniques and the spectrophotometry process.
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Classic AP Requirement #15—Synthesis of a Coordination Compound and Its Chemical Analysis
Students synthesize the coordination compound potassium trioxalatoferrate(III) trihydrate, K3[Fe(C2O4)3]•3H2O. Once produced, the product is identified by colorimetric methods and the percent yield of the product is determined. The absorbance of a solution of the product will be taken at three wavelengths. The ratios of these absorbances are used to identify the compound in solution as K3[Fe(C2O4)3]•3H2O.
Complete for 24 students working in pairs.
Synthesis and Analysis of a Coordination Compound Inquiry Guidance/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:
Acetone, 250 mL
Ethyl alcohol, 50%, 250 mL
Ethyl alcohol, 95%, 250 mL
Ferrous ammonium sulfate, 140 g
Hydrogen peroxide solution, 6%, 250 mL
Oxalic acid, 100 g
Potassium oxalate, 75 g
Sulfuric acid solution, 2 M, 25 mL
Pipet, Beral-type, thin stem, 36
Additional Materials Required (for each lab group): Aspirator and aspirator trap assemblies, 0.001-g precision balance (shared), beakers, Büchner funnel and adapter, ceramic fiber square, cuvets, Erlenmeyer flask, filter flask, filter funnel, filter paper (quantitative), graduated cylinders, heat-resistant gloves, hot plate, spectrophotometers (shared), stirring rod, thermometer, lint-free tissues or lens paper, vacuum tubing, wash bottle with distilled or deionized water, watch glasses.
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Correlation to Next Generation Science Standards (NGSS)†
Science & Engineering Practices
Planning and carrying out investigations
Analyzing and interpreting data
Using mathematics and computational thinking
Developing and using models
Disciplinary Core Ideas
MS-PS1.B: Chemical Reactions
HS-PS1.B: Chemical Reactions
Energy and matter
Systems and system models
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-PS1-4: Develop a model that predicts and describes changes in particle motion, temperature, and state of a pure substance when thermal energy is added or removed.
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.