Item #: AP7511
In the Kinetics of a Redox Reaction Classic Lab Kit for AP® Chemistry, students study the rate of the reaction of FD&C Red Dye No. 3 with sodium hypochlorite. This challenges the students’ understanding of concentration relationships and more.
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Classic AP Requirement #12b—Determination of the Rate of a Reaction and Its Order
Students study the rate of the reaction of FD&C Red Dye No. 3 with sodium hypochlorite using a spectrophotometer. First, students create a calibration curve for the dye. Then they find the order of reaction for each of the reactants by varying the concentration of each reactant individually. Finally, a graphical analysis of the relationship of concentration versus time is used to calculate the rate constant. Includes optional FD&C Blue Dye No. 1 for better absorbance with some colorimeters.
Complete for 30 students working in pairs. A spectrophotometer or colorimeter is required.
Materials Included in Kit:
FD&C food dye, blue 1, 2 g
FD&C food dye, red 3, 1 g
Sodium hypochlorite solution, 475 mL
Syringe, 12 mL, 30
Syringe, disposable, 3 mL, 15
Additional Materials Required (for each lab group): Distilled or deionized water, colorimeter sensor or spectrophotometer (shared), computer interface system (shared), labeling or marking pens, stoppers to fit test tubes, test tube rack, test tubes, timer, lint-free tissues or lens paper.
Additional Materials Required (for Pre-Lab Preparation): 0.001-g precision balance, pipet bulb, volumetric flasks, volumetric pipets.
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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
Engaging in argument from evidence
Disciplinary Core Ideas
HS-PS1.A: Structure and Properties of Matter
HS-PS1.B: Chemical Reactions
HS-PS3.D: Energy in Chemical Processes
Cause and effect
Systems and system models
Energy and matter
Structure and function
Stability and change
HS-PS1-1. Use the periodic table as a model to predict the relative properties of elements based on the patterns of electrons in the outermost energy level of atoms.
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-PS1-6. Refine the design of a chemical system by specifying a change in conditions that would produce increased amounts of products at equilibrium.
HS-PS1-7. Use mathematical representations to support the claim that atoms, and therefore mass, are conserved during a chemical reaction.