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
The solubility product of AgC2O4 at 25°C is 2.3 × 10–11 M3. A solution of K2C2O4 containing 0.15 moles in 500 ml water i...A 0.1 M solution of [Cu(NH3)4]+ is stirred with an excess of potassium cyanide sufficient to convert all the ammonium co...A solution of Na2CO3 is added drop by drop to litre of a solution containing 10-4 mole of Ba2+ and 10-5 mole of Ag+, if ...The pKa of acetylsalicylic acid (aspirin) is 3.5. The pH of gastric juice in human stomach is about 2 to 3 and the pH in...If ionization of XaYb takes place then, the number of Y–a ions will be equal to...