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Tips for the Big 3 Sciences : AP Chemistry

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  • Post last modified:February 25, 2026

AP Chemistry is one of the most rigorous and conceptually challenging courses a high school student can take, so productive and strategic preparation for the AP Exam is key to earning a good score.

How to Study for the Exam

  • Study at least 3 months prior to the exam. Normally, with most AP exams, students can study about 2 months before the actual testing day and still score quite well on the exam. However, for the majority, Chemistry is not that class. Buy a prep book (5 steps to a 5 is a good one) and work on it at least 3 months prior to the exam. You should be starting during spring break AT THE LATEST. Take the first 2 months to drill concepts (more weighted topics, like Acid-Base, first, then the lesser weighted topics), and the last months to work on full-length practice tests, which conveniently brings us to our next strategy.
  • Take Full-Length Timed Practice Exams. With most AP Exams, especially Chemistry, time management is crucial. Training yourself to be able to take both a full-length MCQ and FRQ timed test in one sitting will help you get comfortable being uncomfortable in timed settings. With MCQs, try to aim for a consistent time each question (though that may not always be the case, as mathematical/conceptual questions tend to take longer than short, memorization questions), while with FRQs, try to always pace for extra time to double check your answers—you would be surprised how many points you may lose over a simple calculation error.
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Common Mistakes

  • Ignoring Units. Students often lose easy points, especially on FRQs, for forgetting units or using incorrect units. Make sure to convert your units correctly and DOUBLE CHECK! 
  • Memorizing without Understanding. Though memorizing concepts could be useful for one or two vocabulary MCQs, the gaps in conceptual understanding will show on your FRQs. For example, memorizing that “strong acids fully dissociate” is not enough. You need to understand why equilibrium favors the direction it does, how it affects pH, etc.
  • Calculator Overreliance. Overly relying on plugging in numbers can lead to unnoticed dumb mistakes. Make sure you use your “Chemistry logic” to check your answer as you plug it into your calculator. For example, ask yourself questions like “Should the pH really be this high/low?”, “Should concentration increase/decrease?”, etc.

Time Management on Tests

  • Falling Behind. AP Chem is a very hard subject and on tests it can be easy to get stuck on a question and fall behind. It’s better to move on and come back. To prepare, it is best to do timed practice tests and learn to pace yourself.
  • Start with what you know. When it’s time for the FRQ portion, scan through it first quickly and start with what you know. It’s best to get all the points you can on what you do know then not get any because you wasted time on a question you don’t know.
  • Control Your Time, Control Your Stress. Don’t rush calculations, little mistakes can cost more time. If you blank, take a breath and reread the question slowly to make sure you understand. Don’t second guess yourself and move on. Momentum is important and builds confidence.

Helpful Resources

  • College Board
    • Don’t neglect the resources that are already available to you. College Board provides previous FRQ’s you can practice and gives lessons for each unit which help directly on the test.
  • Khan Academy
    • Khan Academy can give short, clear videos on topics with practice questions. Khan Academy is useful for spotting weaknesses and reviewing, however it is not the best resource to rely on to learn the whole course.
  • Practice
    • The best resource is to practice. Take practice tests and look at old questions to see what they are like and see the structure. Applying your knowledge will help the most to nail down difficult topics. On test day, it can be hard to comprehend questions so looking at them beforehand can help a lot.

Though this class may seem “impossible” at first, utilizing the right study methods and finding a good group of friends can make studying enjoyable and more productive—ultimately leading to your success.