AP Exam Self Check Unit 3

AP Chemistry Exam Prep – Unit 3 Rescue Pack

🌟 Common Mistakes (Watch Out!)

• Mistake 1: Confusing intermolecular and intramolecular forces.
• Mistake 2: Overlooking hydrogen bonding opportunities (e.g., NOF rule).
• Mistake 3: Misinterpreting vapor pressure and its relation to boiling point.
• Mistake 4: Forgetting dispersion forces increase with molar mass.
• Mistake 5: Assuming all polar molecules have strong IMFs.

🎯 Grade Predictor Quick Test

Answer the following 5 questions to estimate your grade:

1. Which of the following is an intermolecular force?
Hydrogen bonding
Ionic bonding
Covalent bonding

2. Which molecule can hydrogen bond?
CH₄
NH₃
CO₂

3. What happens to vapor pressure as temperature increases?
Increases
Decreases
Stays the same

4. Which molecule has the strongest dispersion forces?
I₂
F₂
H₂

5. Which of the following is true about polar molecules?
All have hydrogen bonding
All have high boiling points
Polarity doesn't always mean strong IMF

📊 AP Score Estimator (Rough Guide for Unit 3 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 3)

• Review types of intermolecular forces and examples.
• Compare boiling point trends using IMF strength.
• Quiz yourself on IMF identification + properties.
• Complete at least 10 MCQs and 2 FRQs from Unit 3.
• Do timed FRQs on vapor pressure or boiling points.