AP Chemistry: Class 80

Dates

• Period E: Friday, March 15th
• Period F: Friday, March 15th

Return Kinetics Exams – How do I earn points?

• state chemistry standard
• state answer
• connect chemistry to answer

Exam Example:

• The gas-phase decomposition of nitrous oxide has the following two-step mechanism. Step 1: N₂O → N₂ + O Step 2: O + N₂O → N₂ + O₂
• Is the oxygen atom, O, a catalyst for the reaction or is it an intermediate? Explain.
• Identify the rate-determining step in the mechanism if the rate law for the reaction was determined to be rate = k [N₂O]. Justify your answer.

Big Idea: Do all reactions have a start and finish? How do I calculate amounts when a reaction doesn’t finish?

• Class presentation (Chemical Equilibrium)
• Vocabulary, examples, sample math

Homework

• Chapter Notes Due Monday / Tuesday
• Practice AP Problems Due Monday 26th (before Spring Break)