Coeficiente de partición S2
=[S2-]/{ [H2S] [HS-] [S2-]}
= ka 1 * ka2 /{[h ]^2 [h ]* ka 1 ka 1 * ka2 }
=(1.3*10^-7 *7.1*10^-15) /{ (10^-8.00) ^2 (10^-8,00)*(1,3*10^-7) (1,3*10^-7 *7,1*10^-15)}
=6,6*10^-7
Coeficiente de partición de Ag
=[Ag ]/{[Ag ] [Ag(NH3) ] [Ag(NH3)2 ]}
= 1/{ 1 β1 *[NH3] β2*[nh3]^2}
=1/ {1 10^3.24 *0.01 10^7.05 *(0.01)^2}
=8.8* 10^-4
Ag2S lt= = gt2Ag S2-
2s s
[Ag ]=2s *8.8*10^-4
[S2-]= *6.6*10^-7 Sur
ksp(ag2s)=[ag ]^2 *[S2-]=(2s *8.8*10^-4)^ 2 *(s *6,6*10^-7)=2,0*10^-49
s=4,6*10^-13 mol/L