Buscamos urgentemente una respuesta a la química analítica

pH=8.00

Coeficiente de distribución de S2-

=[S2-]/{ [H2S] [HS-] [S2-]}

=Ka1*Ka2 /{[H ]^2 [H ]*Ka1 Ka1*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 distribución 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; ==gt; 2Ag S2-

2s s

[Ag]=2s *8.8 *10^-4

[S2-]=s *6.6*10^-7

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