Study resource
Acids and bases (A-level only) key terms
Study Acids and bases (A-level only) with curriculum-aligned Key Terms resources, practice links, and exam-focused support.
At a glance
key terms
Resource type
Topic
Acids and bases (A-level only)
Key terms
Strong Acid
An acid that completely dissociates in solution, releasing all of its hydrogen ions.
Weak Acid
An acid that partially dissociates in solution, establishing an equilibrium between the undissociated acid and its ions.
Buffer solution
A solution that resists changes in pH when small amounts of acid or base are added.
Henderson-Hasselbalch equation
An equation used to calculate the pH of a buffer solution based on the pKa of the acid and the ratio of the concentrations of the conjugate base and weak acid.
Buffer solution
A solution that resists changes in pH when small amounts of acid or base are added.
Henderson-Hasselbalch equation
An equation that relates the pH of a buffer solution to the concentrations of its acid and conjugate base.
Buffer Capacity
The ability of a buffer solution to resist changes in pH upon the addition of acids or bases.
Henderson-Hasselbalch Equation
An equation used to calculate the pH of a buffer solution: pH = pKa + log([A⁻]/[HA]).
Buffer solution
A solution that resists changes in pH upon the addition of small amounts of acid or base.
Henderson-Hasselbalch equation
An equation used to calculate the pH of a buffer solution: pH = pKa + log([A⁻]/[HA]).
Related topics