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#common ion effect

3 public questions tagged with this topic.

Homogeneous and Heterogeneous Equilibria and Applications of Equilibrium Constant

The Ksp of AgIO₃ is 3.0 × 10⁻⁸ . What is [Ag+] in a saturated solution containing 0.02 M KIO₃ ?

For AgIO₃ Ag+ + IO₃- , Ksp = [Ag+][IO₃-] = 3.0 × 10⁻⁸ . [IO₃-] = 0.02 + [Ag+] ≈ 0.02 M , [Ag+] = (3.0 × 10⁻⁸/0.02) = 1.5 × 10⁻⁶ M .

Ref: NCERT Class 11 Chemistry > Chapter 6: Equilibrium > Topic: Homogeneous and Heterogeneous Equilibria and Applications of Equilibrium Constant

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Buffer Solutions and Solubility Product and Common Ion Effect

For BaF₂(s) Ba²⁺(aq) + 2F-(aq) , Ksp = 1.7 × 10⁻⁶ . In a 0.01 M NaF solution, what is [Ba²⁺] in a saturated solution?

Ksp = [Ba²⁺][F-]² = 1.7 × 10⁻⁶ . [F-] = 0.01 + 2[Ba²⁺] ≈ 0.01 M (since [Ba²⁺ is small). [Ba²⁺] (0.01)² = 1.7 × 10⁻⁶ , [Ba²⁺] = (1.7 × 10⁻⁶/0.0001) = 1.7 × 10⁻² M .

Ref: NCERT Class 11 Chemistry > Chapter 6: Equilibrium > Topic: Buffer Solutions and Solubility Product and Common Ion Effect

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