CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon


Question

The minimum pH required to prevent the precipitation of ZnS in a solution containing 0.01 M ZnCl2 and  saturated with 0.10 MH2S is 
(Given Ksp(ZnS)=1021,Ka1×Ka2ofH2S=1020)
     
 
  1. 2
  2. 7
  3. 4
  4. 1


Solution

The correct option is D 1
Ksp=[Zn26][S2];[S2]=1021102=1019;Ka1×Ka2=[H+]2[S2][H2S]1020=[H+]2×10190.1;[H+]=0.1;pH=1

flag
 Suggest corrections
thumbs-up
 
0 Upvotes


Similar questions
View More


People also searched for
View More



footer-image