Calculate the G f of KClO 4 in this reaction if the G of the reaction is -133kJ. All substances are at 1 bar and 298K.

  Calculate the ΔGf° of KClO4 in this reaction if the ΔG of the reaction is -133kJ. All substances are at 1 bar and 298K.

                                    4KClO3(s) ------> 3KClO4(s) + KCl(s)

           ΔGf°(kJ/mol)   -296.25                      ?            -409.14