In: Chemistry
The molar solubility of silver sulfide in a 0.162 M ammonium sulfide solution is _______ M.
Ksp of Ag2S = 8*10^-51
(NH4)2S(aq) ----------------> 2NH4^+ (aq) + S^2- (aq)
0.162M 0.162M
Ag2S(s) -----------> 2Ag^+ (aq) + S^2- (aq)
2s s+0.162
Ksp = [Ag^+]^2[S^2-]
8*10^-51 = (2s)^2(s + 0.162)
8*10^-51 = (2s)^2( 0.162) [ s + 0.162 = 0.162 , s<<<<<<0.162]
s = 1.11*10^-25
The solubility of Ag2S in 0.162M m(NH4)2S = 1.11*10^-25
I have taken Ksp of Ag2S = 8*10^-51 , please any doubt comment on the BOX