AP CHEMISTRY UNIT 5 SELF CHECK

AP Chemistry Exam Prep – Unit 5 Rescue Pack

🌟 Common Mistakes (Watch Out!)

• Mistake 1: Confusing the rate law with the balanced equation coefficients.
• Mistake 2: Forgetting that only experimental data can determine rate law.
• Mistake 3: Misinterpreting reaction order vs. molecularity.
• Mistake 4: Misunderstanding the meaning of activation energy.
• Mistake 5: Not recognizing that catalysts lower activation energy but don’t change rate laws.

🎯 Grade Predictor Quick Test

Answer the following 5 questions to estimate your grade:

1. What determines the rate law of a reaction?
Experimental data
Coefficients in the balanced equation
Type of chemical bonds

2. What does the slope of a first-order integrated rate law graph represent?
-k
k
ln(k)

3. What does a catalyst do?
Increases activation energy
Lowers activation energy
Changes equilibrium

4. What are the units of the rate constant for a second-order reaction?
mol/L·s
L/mol·s
s⁻¹

5. What does the rate-determining step represent?
The slowest step
The fastest step
The final step

📊 AP Score Estimator (Rough Guide for Unit 5 Mastery)

Enter your practice test scores to estimate your AP score:

MCQ Score (out of 60):

FRQ Score (out of 40):

📋 Final Week Action Checklist (Unit 5)

• Watch videos on reaction rates and rate laws.
• Do practice problems with integrated and differential rate laws.
• Review order of reactions and units of k.
• Complete 10 MCQs and 2 FRQs from Unit 5.
• Quiz yourself on catalysts, activation energy, and rate graphs.