2009 Antilles Exo3 Correction EauDistillee PH 4pts
2009 Antilles Exo3 Correction EauDistillee PH 4pts
2009 Antilles Exo3 Correction EauDistillee PH 4pts
1.3.2. pH = – log[H3O+]éq
pH = – log (1,0×10–7) = 7,0
c.V − x éq
2.6.4. [CO2,H2O]éq = = c – [H3O+]éq = c – 10–pH
V
–pH
c = [CO2,H2O]éq + 10
×10–5 mol.L–1
c = 1,0×10–5 + 10–5,7 = 1,2×