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Product 17144

By: The Flinn Staff

Students witness measurable color changes in this kinetics advanced inquiry activity. A homework set strengthens kinetics concepts and learning objectives and prepares students for success in the lab.

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Big Idea 4

Students witness measurable color changes in this kinetics advanced inquiry activity. A homework set guides students through interpreting experimental data and the factors that influence the rate of a reaction. Students arrive to lab prepared with their very own procedure and carry out the experiment to determine the rate of the iodination of acetone in one 50-minute period. Students will be amazed at the obvious and measurable color changes!

Complete for 24 students working in pairs.

Correlation to Next Generation Science Standards (NGSS)

Science & Engineering Practices

Using mathematics and computational thinking
Constructing explanations and designing solutions
Obtaining, evaluation, and communicating information
Developing and using models

Disciplinary Core Ideas

HS-PS1.A: Structure and Properties of Matter
HS-PS1.B: Chemical Reactions
HS-PS2.B: Types of Interactions
HS-PS3.A: Definitions of Energy

Crosscutting Concepts

Patterns
Energy and matter
Cause and effect
Structure and function
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-PS1-3: Plan and conduct an investigation to gather evidence to compare the structure of substances at the bulk scale to infer the strength of electrical forces between particles.
HS-PS1-4: Develop a model to illustrate that the release or absorption of energy from a chemical reaction system depends upon the changes in total bond energy.
HS-PS1-5: Apply scientific principles and evidence to provide an explanation about the effects of changing the temperature or concentration of the reacting particles on the rate at which a reaction occurs.
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-PS2-6: Communicate scientific and technical information about why the molecular-level structure is important in the functioning of designed materials.