87. 10 Application of EMF and electrode potential 7.10.3 Determination of the reaction direction ∠G≤0LG=-HFE When concentration differs far from the standard concentration, should be used in ge(Fe3/Fe2)=0771V; stead of ge(L2r)=0.5362V au tle= au 1.7V Stronger oxidizing species oxidizes stronger reducing species to produce O+2HO+4e=40Hp=0401 weaker reducing and weaker How can we make au in mine dissolve in OXidizing species alkaline solution?7.10.3 Determination of the reaction direction When concentration differs far from the standard concentration,  should be used in stead of ⊖. Stronger oxidizing species oxidizes stronger reducing species to produce weaker reducing and weaker oxidizing species. ⊖ (Fe3+/Fe2+) = 0.771 V; ⊖ (I2 /I− ) = 0.5362 V + Au 1e Au − + =  =1.7 V O +2H O+4e 4OH 2 2 − − =  =0.401 How can we make Au in mine dissolve in alkaline solution? §7.10 Application of EMF and electrode potential G  0 G nFE = −