Q.

What is the molar solubility of Al(OH)3 in 0.2 M NaOH solution? Given that solubility product of

Al(OH)3=2.4×1024

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a

3×1022

b

12×1023

c

12×1021

d

3×1019

answer is D.

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Detailed Solution

Al(OH)3Al+3+3OHS0.2+3S0.2

S×(0.2)3=ksp=2.4×1024S=3×1022M.

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