Ionic EquilibriumHard
Question
A saturated solution of silver benzoate (AgOCOC6H5) has pH of 8.6. Ka for benzoic acid is 5.0 × 10–5. The value of Ksp for silver benzoate is (log 2 = 0.3)
Options
A.8.0 × 10−2
B.6.4 × 10−3
C.6.4 × 10−4
D.0.282
Solution
$Tl_{2}S(S) \rightleftharpoons \underset{2SM}{2Tl^{+}} + \underset{x}{S^{2 -}}$
$\underset{x\text{ M}}{S^{2 -}} + H_{2}O \rightleftharpoons \underset{\text{SM}}{HS^{-}} + \underset{\text{SM}}{OH^{-}};K_{h} = \frac{Kw}{K_{a_{2}}} $$${\frac{10^{- 14}}{10^{- 14}} = \frac{2 \times 10^{- 6} \times 2 \times 10^{- 6}}{x} \Rightarrow x = 4 \times 10^{- 12} }{\therefore K_{sp} = \left( 2 \times 2 \times 10^{- 6} \right)^{2} \times 4 \times 10^{- 12} = 6.4 \times 10^{- 23}}$$
Create a free account to view solution
View Solution FreeMore Ionic Equilibrium Questions
Calcium lactate is a salt of weak acid and represented as Ca(Lac)2. A saturated solution of Ca(Lac)2 contains 0.125 mole...An acid with molelcular formula C7H6O3 forms three types of sodium salts. i.e., C7H5O3Na, C7H4O3Na2 and C7H3O3Na3. The b...The range of most suitable indicator which should be used for titration of NaX (0.1 M, 10 ml) with 0.1 M HCl should be (...The pH of a solution obtained by mixing 100 ml of 0.2 M CH3COOH with 100 ml of 0.2 M NaOH would be : (pKa for CH3COOH = ...The solubility of PbCI2 in water is 0.01 M 25oC. Its maximum concentration in 0.1 M NaCI will be:...