例 Zn"++2e Zn +0.059 iog in2*1/1mol*7' 0=p 2 [zn2*]=1 2) Fe+e=Fe2 [Fe3+]/1mol*1 +0.059lojmol 给源爱河案大孕 HARBIN LNTVERSITY OF COMMERCE 例 [ ] 1 log[ ]/1 * 2 0.059 (1) 2 2 2 1 2 = = + + = + − + − + Zn Zn mol l Zn e Zn   2 1 3 1 3 2 [ ]/1 * [ ]/1 * 0.059log 2) + − + − − + + = + + = Fe mol l Fe mol l Fe e Fe  