Two salts A2X and MX have the same value of solubility product of 4.0×10−12. The ratio of their molar solubilities i.e. S(A2X)S(MX)= _ _ _ _ . (Round off to the nearest integer) Continue reading Two salts A2X and MX have the same value of ….
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The molar solubility of Zn(OH)2 ….
The molar solubility of Zn(OH)2 in 0.1 M NaOH solution is x×10−18M. The value of x is _ _ _ _ . (Nearest integer)
(Given: The solubility product of Zn(OH)2 is 2×10−20)
Solution
Zn(OH)2⇌Zn2+s+2OH–2s+0.1
Ksp=[Zn2+][OH–]2=s.(2s+0.1)2
∴2×10–20=s.(2s+0.1)2≈0.12×s
⇒s=2×10–18
∴x=2