**Problem Statement:**What is the solubility of La(IO₃)₃ in a solution that contains 0.500 M IO₃⁻ ions? (Ksp of La(IO₃)₃ is 7.5 × 10⁻¹²)**Explanation:**In this problem, we are asked to find the solubility of lanthanum iodate, La(IO₃)₃, in a solution that already contains a concentration of iodate ions (IO₃⁻) at 0.500 M. The solubility product constant (Ksp) for La(IO₃)₃ is given as 7.5 × 10⁻¹².**Conceptual Approach:**To solve this, we apply the concept of solubility product equilibrium and use the given Ksp value. - Firstly, we write the chemical equation for the dissociation of La(IO₃)₃ in water: La(IO₃)₃ (s) ⇌ La³⁺ (aq) + 3 IO₃⁻ (aq)- The expression for the solubility product (Ksp) is: Ksp = [La³⁺][IO₃⁻]³Given that the initial concentration of IO₃⁻ is 0.500 M, we will incorporate this into the Ksp expression to find the solubility of La³⁺ in the solution. The terms will be adjusted according to the stoichiometry of the reaction and the concentration changes during the dissolution process. **Note:**This problem involves the common ion effect, where the presence of a common ion (IO₃⁻ in this case) affects the solubility of the compound.

Solubility is the maximum amount of solute which can be dissolved in specific amount of solvent/solution at a particular Temperature. In the presence of common ion solubility decreases. Assume the solubility of salt is 's' La(IO3)3(s) ------>La3+(aq.)+3IO33-(aq.) s (3s+0.500) In saturated solution Ksp = [La3+][IO3-] 7.5×10-11 = (s)(3s+0.50)3 Solubility of sparingly soluble salts are very very less , hence 3s <<<0.50 , 3s +0.50 = 0.50 M Now, 7.5×10-12 = (s)(0.50)3 s = 6.0×10-11M So, Solubility of salt = 6.0×10-11 M

Answered: D3 ions? (Ksp of La(IO3)3 is 7.5 × 10…

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Chemistry

D3 ions? (Ksp of La(IO3)3 is 7.5 × 10 12)

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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