KCET2024ChemistryIonic Equilibrium
Solubility product of CaC ₂ O ₄ at a given temperature in pure water is 4 10⁻⁹ ( ~mol ~L ⁻¹ )^2 . Solubility of CaC ₂ O ₄ at the same temperature is
Options
- A6.3 10⁻⁵ ~mol ~L ⁻¹
- B2 10⁻⁵ ~mol ~L ⁻¹
- C2 10⁻⁴ ~mol ~L ⁻¹
- D6.3 10⁻⁴ ~mol ~L ⁻¹
Correct answer
A. 6.3 10⁻⁵ ~mol ~L ⁻¹
Step-by-step solution
Given, K_ sp =4 10⁻⁹ ( ~mol ~L ⁻¹ )^2S= ? CaC ₂ O ₄ Ca ²⁺+ C ₂ O ₄²⁻K_ sp =(S)(S)4 10⁻⁹=S^2 S= 4 10⁻⁹ =6.3 10⁻⁵ ~mol / L Thus, the solubility of CaC ₂ O ₄ is 6.3 10⁻⁵ ~mol / L .