The acid ionization hydrolysis constant of Zn2+ is 10 x 10 which of the following statement are
correct?
1) The [H3O+] ion concentration in 0.001 M ZnCl, solution is 1.0 x 104
2) The pH of 0.001 M ZnCl, solution is 8
3) The basic dissociation constant of Zn(OH)* is 1.0 x 10-5
4) The basic dissociation constant of Zn(OH)* is 10 x 105
Answers
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0
Explanation:
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Answered by
1
Answer:
Acid ionisation) hydrolysis constant of Zn
2+
=1.0×10
−9
Let it be x⟹x=10
−9
also c=0.001
We know, x=
K
b
.C
K
w
=
10
−3
.K
b
10
−14
=10
−9
10
−3
.K
b
10
−14
=10
−18
=
10
−7
1
=K
b
K
b
=10
7
pK
b
=−log10
7
=−7
pH=
2
1
(14−pK
b
−logC)
=
2
1
(14+7−log10
−3
)=
2
24
=12
pH=12
Explanation:
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