20.3 The acid dissociation constant Ka

How do you calculate Ka

Ka=10-pKa

What Ka value does a strong acid have

Large

Ka equation for ethanoic acid

[H+][CH3COO-] / [CH3COOH]

What does a strong acid do in aqueous solution

completely dissociate

what pKa value does a weak acid have

large

units for Ka

moldm-3

How do you calculate pKa

pKa = -logKa

what does a weak acid do in aqueous solution

partially dissociates

What Ka value does a weak acid have

small

What pKa value does a strong acid have

small