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What is maximum pH required to prevent t...

What is maximum pH required to prevent the precipitation of ZnS in a solution that is 0.01 M `ZnCl_(2)` and saturated with 0.10M `H_(2)S`?
[Given : `K_(sp)(ZnS)=10^(-21),`
`K_(a_(1))xxK_(a_(2))` (of `H_(2)S`)=`10^(-20)`]

A

0

B

1

C

2

D

4

Text Solution

Verified by Experts

The correct Answer is:
b
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What is the minimum pH required to prevent the precepitation of ZnS in a solution that is 0.01 M ZnCl_(2) and saturated with 0.10 M H_(2)S ? [Given k_(sp) " of " ZnS = 10^(-21), "For " H_(2)S K_(a1) xx K_(a2) = 10^(-20)]

Knowledge Check

  • What is the minimum pH required to prevent the precipitation of ZnS in a solution that is 0.01MZnCl_(2) and saturated wth 0.10M H_(2)S ? [Given K_(sp)=10^(-21),K_(a_(1))xxK_(a_(2))=10^(-20)]

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  • What is the minimum pH required to prevent the precipitation of ZnS in a solution that is 0.01 M ZnCl_2 and saturated with 0.10 M H_2S ? [Given K_sp=10^(-21) , K_(a_1) xxK_(a_2)=10^(-20) ]

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