9 1 Enthalpy Entropy and Gibbs Energy of Solvated Ions

[joelschmierer]

i have a question. I see values for 'gibbs energy of formation' and then i see values for the same species for 'gibbs energy of hydration or solvation' and 'enthalpy of hydration or solvation'. For my equations I am coming up with to explain my thesis work (and to calculate by free energy change which equations are most likely to occur), do I only need to use the 'gibbs energy of formation' values and not use the 'gibbs energy of hydration or solvation' and 'enthalpy of hydration or solvation' values (it was hinted to me that the 'gibbs energy of formation' values already account for hydration or solvation considerations so I may only need to use the the 'gibbs energy of formation' values). For example, some of my equations involves aqueous species: 2 Al(s or l) + 6 [OH]—(aq) + 6 H+(aq) → 2 Al(OH)3, (s, gibbsite) + 3 H2, (g) and 2 Al(s or l) + 6 [OH]—(aq) + 6 H3O+(aq) → 2 Al(OH)3, (s, gibbsite) + 3 H2, (g) + 6 H2O(l) and 2 Al(s or l) + 6 H2O(l) + 2 [OH]—(aq) → 2 [Al(OH)4 ]—(aq) + 3 H2(g). (i also can't find a literature value for gibbs energy for H3O+ ion)