Dissociation Constants for Bases (HSC SSCE Chemistry): Flashcards

How much a weak base splits apart in water

$\frac{[\text{BH}^+][\text{OH}^-]}{[\text{B}]}$

Stronger base, more dissociation occurs

$K_w$ (ion product of water)

$1.0 \times 10^{-14}$

$1.8 \times 10^{-5}$

$\frac{[\text{OH}^-]^2}{[\text{B}]}$

$[\text{OH}^-] = 10^{-\text{pOH}}$

$\text{pH} + \text{pOH} = 14$

Equals initial concentration (dissociation negligible)