The solubility product of Al(OH)3 is 2.7 * 10–11. Calculate its solubility in gL–1 and also find out pH of this solution. (Atomic mass of Al = 27 u).
The solubility product of Al(OH)3 is 2.7 * 10–11. Calculate its solubility in gL–1 and also find out pH of this solution. (Atomic mass of Al = 27 u).
This is a Short Answer Type Questions as classified in NCERT Exemplar
Ans: Let us assume S be the solubility of Al (OH)3.
Ksp= [Al3+] [OH-]3= (S) (3S)3=27S4
S4=27Ksp=27 * 1027 * 10-11=1 * 10-12
S=1*10−3 mol L-1.
(i) Solubility of Al (OH)3 ? : Molar mass of Al (OH)3 is 78g. Hence, solubility of Al (OH)3
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Chemistry NCERT Exemplar Solutions Class 11th Chapter Seven 2025
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