Question 1
Heating 25.0 g of calcium carbonate decomposes it by CaCO₃(s) → CaO(s) + CO₂(g). The student recovers 12.6 g of CaO. What is the percent yield of CaO?
How much does the AP Chemistry exam cost?
For the May 2027 exams the fee is US$99 at schools in the US, US territories, Canada and DoWEA schools, and US$129 at schools everywhere else.
| US, territories, Canada | US$99 per exam |
|---|---|
| Elsewhere | US$129 per exam |
| Fee reduction | US$37 per exam for eligible students |
| On-time ordering | By November 13, 2026 |
Deadlines and extra fees
- Exams ordered from November 14, 2026, through March 12, 2027, carry a US$40 late order fee on top of the exam fee.
- An exam that is canceled or left unused carries a US$40 fee.
- Your school orders exams and may set its own earlier deadline and its own price; ask your AP coordinator.
Fee reductions
College Board takes US$37 off each exam for students who qualify for a fee reduction, and schools and states may add their own help. Ask your AP coordinator what applies to you.
Try 2 questions
Question 2
Which of the following pure liquids has hydrogen bonding between its molecules?
Next step
Questions people ask
How much is the AP Chemistry exam in 2027?
US$99 at schools in the US, US territories, Canada and DoWEA schools, and US$129 elsewhere, for exams ordered on time.
Is there a fee waiver for AP exams?
College Board gives a US$37 fee reduction per exam to eligible students, and schools and states may reduce the cost further.
What is the deadline to sign up for the AP Chemistry exam?
Schools order exams by November 13, 2026 without a late fee. Your school may set an earlier date.