Izracunati elektrodni potencijal Pt-elektrode uronjene u rastvor Fe3+=0,05mol/l i Fe2+=0,1mol/l.Standardni elektrodni potencijal Fe3+|Fe2+=+0,77V
Fe3+ +e- ----------------->Fe2+
E=E0-0.059*log(Fe2+)/(Fe3+)
E=0.77-0.059*log(0.1/0.05)
E=0.77-0.059*0.3=0.77-0.0177=0.752 V
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elektrohemija
Fe3+ +e- ----------------->Fe2+
E=E0-0.059*log(Fe2+)/(Fe3+)
E=0.77-0.059*log(0.1/0.05)
E=0.77-0.059*0.3=0.77-0.0177=0.752 V