Diapositive PPT
1) L’eau considérée comme acide
acide + H2O = base + H3O+aq
Ka = [aBs] [H3O+] } / [ aAc ]
Ka = [OH-] [H3O+] } / a H2O
Ka = [OH-] [H3O+] } / 1 = Ke
base + H2O = acide + OH-aq
Kb = [aAc] [OH-] / [ abs ]
Kb = [H3O+] [OH-] / a H2O
Kb = [H3O+] [OH-] / 1 = Ke
2) L’eau considérée comme base