aAa±2r±m±m2r±2ννmB2m2r±2mB2r±mB9988×103，mB14475×104molkg12离子强度由HNO3提供：
I12×10×103×1210×103×120001molkg1lgrAzzI0509110001001609
r±0964
KspaAgaArAgmAgrAmAm2r±2mAgmA9976×107
mAg13×104molkg1
mA8257×105molkg1
mH87×1048257×1059526×104molkg1mHA13×1048257×1054743×105molkg1∵对于弱电解质溶液，浓度近似等于活度：
6
fKamHmAmHA9526×104×8257×1054743×105166×103
7
f物理化学习题解答九
习题p109116
1解：1PtH2pH2HClaCl2pCl2Pt正极：Cl2pCl22e→2Cla负极：H2pH22e→2Ha电池反应：H2pH2Cl2pCl22HCla2PtH2pH2HaH‖AgaAgAgs正极：AgaAge→Ags负极：H2pH22e→2HaH电池反应：H2pH2AgaAg2HaHAgs3AgsAgIsIaI‖ClaClAgClsAgs正极：AgClse→AgsClaCl负极：AgsIaIe→AgIs电池反应：AgClsIaIAgIsClaCl4PbsPbSO4sSO42aSO42‖Cu2aCu2Cus正极：Cu2aCu22e→Cus负极：PbsSO42aSO422e→PbSO4s电池反应：PbsCu2aCu2SO42aSO42PbSO4sCus5PtH2pH2NaOHaHgOsHgl正极：HgOsH2Ol2e→Hgl2OHaOH负极：H2pH22OHaOH2e→2H2Ol电池反应：HgOsH2pH2HglH2Ol6PtH2pH2HaHSb2O3sSbs
8
f正极：Sb2O3s6HaH6e→2Sbs3H2Ol负极：H2pH22e→2HaH
电池反应：Sb2O3s3H2pH22Sbs3H2Ol7PtFe3a1，Fe2a2‖AgaAgAgs正极：AgaAge→Ags负极：Fe2a2e→Fe3a1电池反应：AgaAgFe2a2Fe3a1Ags8NaHgaamNaaNa‖OHaOHHgOsHgl正极：HgOsH2Ol2e→Hgl2OHaOH负极：2NaHgaam2e→2NaaNa2Hgl电池反应：2NaHgaamHgOsH2Ol2NaaNa2OHaOH3Hgl2解：1AgClsAgaAgClaCl电池：AgsAgaAg‖ClaClAgClsAgs正极：AgClse→AgsClaCl负极：Agse→AgaAg电池反应：AgClsAgaAgClaCl2AgClsIaIAgIsClaCl电池：AgsAgIsIaI‖ClaClAgClsAgs正极：AgClse→AgsClaCl负极：AgsIaIe→AgIs电池反应：AgClsIaIAgIsClaCl3HgOsH2pH2HglH2Ol电池：PtsH2pH2NaOHaHgOsHgl正极：HgOsH2Ol2e→Hgl2OHa负极：H2g2OHa2e→2H2Ol电池反应：HgOsH2pH2→HglH2Ol4Fe2aFe2AgaAgFe3aFe3Ags
9
f电池：PtsFe3aFe3，Fe2aFe2‖AgaAgr