AP Chemistry Calculations

When performing chemistry calculations, students will be expected to pay attention to significant figures, precision of measured values, and the use of logarithmic and exponential relationships. Students should be able to determine whether or not a calculation is reasonable. According to the College Board, the following types of chemical calculations may appear on the AP Chemistry Exam:

1. Percentage composition

2. Empirical and molecular formulas from experimental data

3. Molar masses from gas density, freezing-point, and boiling-point measurements

4. Gas laws, including the ideal gas law, Dalton's law, and Graham's law

5. Stoichiometric relations using the concept of the mole; titration calculations

6. Mole fractions; molar and molal solutions

7. Faraday's law of electrolysis

8. Equilibrium constants and their applications, including their use for simultaneous equilibria

9. Standard electrode potentials and their use; Nernst equation

10. Thermodynamic and thermochemical calculations

11. Kinetics calculations