Written by the Fiveable Content Team โข Last updated August 2025
Verified for the 2026 exam
Verified for the 2026 examโขWritten by the Fiveable Content Team โข Last updated August 2025
Definition
Ka3 refers to the acidity constant associated with the third and final ionization of citric acid. It measures how easily the third hydrogen ion (H+) can be removed after two have already been removed during previous ionizations.