第十章氧化还原反应(双语)

1、10.1 Oxidation-Reduction Reactions Balanced equation must meet the following requirements:(1) Atoms of each element must be conserved.(2) Electrons must be conserved.Oxidation number method and ion-electron method. KMnO4+FeSO4H2SO4MnSO4Fe2(SO4)3K2SO4+7+2+2+327=5232=125 10.4 Standard Cell Electromoti

2、ve ForceNoImageMFEMFE 1.Calculation of Standard EMF of Cell Ecell=Ecathode - Eanode2.Spontaneity of Redox Reaction Ecell0, in the forward direction Ecell0, in the reverse direction Ecell=0, at equilibriumCu2+ + 2e- Cu E=0.3418VFe3+ + 2e- Fe2+ E=0.771VFe3+ + e- Fe E=-0.037V2Fe3+ + Cu Cu + 2Fe2+ (Re)(

3、lnnFRTcOxcEE(Re)c(Ox)lgn0.0592cEEVZnZnnEEZnZnZnZn771. 05 . 0lg20592. 07618. 0lg0592. 02/22VIInEEIIII595. 01 . 01lg20592. 05355. 0lg0592. 0222/22VFeFenEEFeFeFeFe829. 001. 01 . 0lg10592. 0771. 0lg0592. 023/2323VClppnEEClClClCl48. 101. 01lg20592. 03583. 1/lg0592. 022/22Sn + Pb2+ Sn2+ + PbSn2+ + 2e- Sn

4、E=-0.1375VPb2+ + 2e- Pb E=-0.1262V0)1375. 0(1262. 0)()(EEEMFVPbnEEPbPbPbPb185. 001. 0lg20591. 01262. 0lg0591. 02/22VCuCunEECuCuCuCu31. 01 . 0lg20592. 03419. 0lg0592. 02/22VFeFenEEFeFeFeFe83. 001. 01 . 0lg10592. 0771. 0lg0592. 023/23232314272/lg60592. 032723272CrHOCrEECrOCrCrOCrVECrOCr37. 10416. 033.

5、 12lg60592. 033. 114/3272VECrOCr916. 0)0414. 0(33. 1)10lg(60592. 033. 1143/3272VEA/ClO4-+1.19+1.21+1.64+1.63+1.49+1.3583+1.47+1.45+1.34ClO3-ClO2-Cl2Cl-ClO-VEB/ClO4-+0.36+0.33+0.66+0.40+1.3583+0.50+0.89ClO3-ClO2-Cl2Cl-ClO-左右EEEEEMF)()(左E右E左右EE左右EE2Cu+ Cu + Cu2+ VEA/VEB/3Br2 + 6OH- 5Br- + BrO3+ + 3H2O xEn1n2n3( n1 + n2 + n3 )ABCD1E2E3E321332211nnnEnEnEnExiiixnnnEnEnEnE212211VClOClOE50. 022266. 0233. 0)/(32VClClOE42. 01136. 1289. 0)/(23VClClOE56. 02222289. 0266. 0233. 0236. 0)/(41)/(