Math Lesson Plan
Teacher Name:
Rademacher
Department: Science
Name of Lesson:
Kinetics
Course:
AP Chemistry
Grade/Level:
11,12
Objective:
 To learn how to solve Kinetics (rates of reactions) problems using the data given
to develop a graph, take a point from the graph and use that data to find the
differential rate law, integrated rate law, the rate constant and the overall order of
a reaction.
Math Standard:
 Strand 2: Concept 1: PO 3: Display data as tables, lists.
 Strand 3: Concept 3: PO 1: Determine if a relationship is a function given a graph.
 Strand 3: Concept 3: PO 7: Express the relationship between 2 variables using
graphs.
 Strand 3: Concept 3: PO 8: Interpret the relationship between data suggested by
graphs.
Math Concept (e.g. creating graphs, interpreting graphs, or problem solving):
 creating graphs
 interpreting graphs
 problem solving
Anticipatory Set:
 Reactions can occur at very different rates. Name some that are very fast. (Food
spoiling, combustion) Name some that are very slow. (Rusting, nuclear decay)
 We can determine the rate of a reaction between chemicals using the differential
rate law, and the integrated rate law just by taking the information from a graph.
Lesson/Activity/Instruction:
 Notes on the Differential rate law, Integrated rate law, finding the rate constant
and the overall order of a reaction.
Guided Practice:
 Book p. 604 #31

The rate of the reaction: NO2 (g) + CO (g)  NO (g) + CO2 (g) depends only on the concentration
of nitrogen dioxide below at 225C. At a temperature below 225C, the following data were
collected. Determine the rate law, the integrated law and the value of the rate constant. Calculate
the [NO2] at 2.70 x 104 s after the start of the reaction.
Independent Practice:
 Book p. 604 #33
 The decomposition of ethanol on an aluminum oxide surface was studied at 600 K.
C2H5OH (g)  C2H4 (g) + H2O(g) Concentration versus time data were collected for this reaction,
and a plot of [A] versus time resulted in a straight line with a slope value of –4.00 x 10-5 mol/Ls.
a) Determine the rate law, the integrated rate law and the rate law constant for this reaction.
b) If the initial [C2H5OH] was 1.25 x 10-2 M, calculate the half-life for this reaction.
Assessment:
 Go over the 2 problems and assign the book problems to be completed before the
end of the hour. Check and go over the answers tomorrow.
 Question #3 from the 2003 AP Chemistry Exam - Free-Response section
Closure:
 Continued tomorrow.
Materials Needed, Resources, etc.:
 Textbook – Zumdahl, 5th Ed. Houghton Mifflin Company, 2000.