10.Eac3 : Couples et constantes d’acidité
Compléter le tableau ci-dessous.
| Acide du couple | Base du couple | Expression de \(K_A\) | Valeur de \(K_A\) | Valeur de \(pK_A\) |
|---|---|---|---|---|
| \(\ce{HCOO-}\) | \(\pu{3,8}\) | |||
| \(\ce{CH3NH2}\) | \(\pu{2,5E-11}\) | |||
| \(\ce{H3O+}\) | 0 | |||
| \(\ce{C2H5COOH}\) | \(\pu{1,3E-5}\) |