AP Chemistry 8.10: Buffer Capacity
Practice AP Chemistry questions on comparing buffer capacity from conjugate acid-base concentrations and resistance to added strong acid or base.
- Syllabus
- Effective Fall 2025
- Course
- AP Chemistry
Exam points
- Explain how atomic structure, periodic trends and electron configurations determine chemical behavior.
- Apply particle and orbital models to predict element properties, bonding and reactivity.
8.10.A—Explain the relationship between the buffer capacity of a solution and the relative concentrations of the… question 1
[Maximum number: 1]
At high temperatures, N2(g) and O2(g) can react to produce nitrogen monoxide, NO(g), as represented by the equation above.
A second student makes a buffer by dissolving 0.100 mol of NaNO2(s) in 100. mL of 1.00MHNO2(aq). Which is more resistant to changes in pH when a strong acid or a strong base is added, the buffer made by the second student or the buffer made by the first student in part (c) ? Justify your answer.
The buffer made by the second student is more resistant to changes in
pH because it contains a higher concentration of HNO_2 and NO_2 ^-to
react with added H^+or OH^-ions.
1 point is earned for the
correct choice and a valid
justification.
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