2.91 77.0 34.76 a state function because the half-reactions are arbitrarily chosen and may contain different numbers of transferred clectrons. Discuss this objection. 5.9 The standard potentials for phosphorus species in aqueous solution at pH = 0 and pH = 14 are represented by the following Latimer diagrams. SOH can be strongly w article by D.T. Sawyer - 469, describe the che OH/OH couple on File, CH.CN. (b) Suggest a solvation of the OH-ion pH = 0 -0.276 -0.499 H,PO H.PO >H,PO, -0.505 -0.063 >>P > PH, in basic solution pH = 14 -1.12 -1.57 s) + 5OH(aq) POS- HPO >H,PO; -2.05 -0.89 PH ) be established on a r the reductions of (a) 7. Comment on why wo cases despite the values (a) Account for the difference in reduction potentials between PH 0 and pH 14. (b) Construct a single Frost diagram showing both sets of data. (c) Phosphine (PH) can be prepared by heating phosphorus with aqueous alkali. Discuss the reactions that are feasible and estimate their equilibrium constants