pH=10,gaY=0.45 武溪大享化学与分子科学学院 COLLEGE OF EHEMIS TRY RND MOLECULRR SCIENCES WUHRN UNIVERSITY IgK'cuY=IgKCuY-IgaY(HD)-aCu =18.80-0.45-9.36=8.99 pCu'=1/2 (pCcusp IgK'Cuy =1/2(2.00+8.99)=5.50 对于Mg2+,gaMg=0 IgK'Mgy =IgKMgY-IgaY()=8.70-0.45 =8.25 pMg'=1/2(pCMgsp+lgK'Mgy) =1/2(2.00+8.25)=5.13 武溪大学 Wuhan UniversitypH = 10, lg  Y(H) = 0.45 lgK CuY = lgKCuY - lgY(H) - Cu = 18.80 - 0.45 -9.36 =8.99 pCu =1/2 (pCCu sp + lgK CuY ) = 1/2 (2.00 + 8.99) =5.50 对于Mg2+, lg Mg =0 lgK MgY =lgKMgY -lgY(H)= 8.70 - 0.45 =8.25 pMg  =1/2(pCMg sp + lgK MgY ) = 1/2(2.00 + 8.25) =5.13