Ionic EquilibriumHard
Question
The correct increasing order of solubility of the following substances in g/100 ml is PbSO4 (Ksp = 2 × 10−9), ZnS (Ksp = 1 × 10−22), AgBr (Ksp = 4 × 10−13), CuCO3 (Ksp = 1 × 10−8).
(Atomic masses: Pb = 208, Zn = 65, Ag = 108, Br = 80, Cu = 63)
Options
A.PbSO4 < ZnS < AgBr < CuCO3
B.PbSO4 < CuCO3 < AgBr < ZnS
C.ZnS < AgBr < CuCO3 < PbSO4
D.ZnS < AgBr < PbSO4 < CuCO3
Solution
$PbSO_{4} = \sqrt{2 \times 10^{- 9}} \times \frac{304}{10} \simeq 1.36 \times 10^{- 3}\text{ g/100ml}$
$ZaS = \sqrt{10^{- 22}} \times \frac{97}{10} = 9.7 \times 10^{- 11}\text{ g/100ml} $$${AgBr = \sqrt{4 \times 10^{- 13}} \times \frac{188}{10} = 1.19 \times 10^{- 5}\text{ g/100ml} }{\text{CuC}\text{O}_{3} = \sqrt{10^{- 8}} \times \frac{123}{10} = 1.23 \times 10^{- 8}\text{ g/100ml}}$$
Create a free account to view solution
View Solution FreeMore Ionic Equilibrium Questions
What is the equilibrium constant of the following reaction? Fe(OH)3(s) + 3H3O+ $\rightleftharpoons$ Fe3+ + 6H2O?Ksp of ...Which of the following are Lewis acids ?...Which of the following ids the strongest acid ?...The solubility of A2X3 is y mol dm–3. It solubility product is...A 0.1 M solution of [Cu(NH3)4]+ is stirred with an excess of potassium cyanide sufficient to convert all the ammonium co...