๐Ÿงชap chemistry review

PKb

Written by the Fiveable Content Team โ€ข Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 examโ€ขWritten by the Fiveable Content Team โ€ข Last updated September 2025

Definition

pKb is a measure of basicity or alkalinity. It's defined as the negative logarithm (base 10) of base dissociation constant (Kb). A lower pKb value indicates a stronger base.