**Writing the Solubility Product Formula (Ksp) for Slightly Soluble Salt Equilibria** Below are the reactions for slightly soluble salts and their dissociation in aqueous solutions. The aim is to express their solubility product constants (Ksp). a. **Calcium Sulfide (CaS) Dissociation:** \[ \text{CaS (s)} \leftrightarrow \text{Ca}^{2+} \text{(aq)} + \text{S}^{2-} \text{(aq)} \] b. **Barium Sulfate (BaSO₄) Dissociation:** \[ \text{BaSO}_4 \text{ (s) } \leftrightarrow \text{Ba}^{2+} \text{(aq)} + \text{SO}_4^{2-} \text{(aq)} \] c. **Calcium Phosphate (Ca₃(PO₄)₂) Dissociation:** \[ \text{Ca}_{3}(\text{PO}_{4})_{2} \text{ (s) } \leftrightarrow 3\text{Ca}^{2+} \text{(aq)} + 2\text{PO}_4^{3-} \text{(aq)} \] **Explanation of Diagrams:** 1. **Chemical Equilibrium Arrows:** - Double arrows (\( \leftrightarrow \)) indicate that the salt is in dynamic equilibrium with its ions in aqueous solution. 2. **States of Matter:** - (s) denotes solid. - (aq) denotes that the species are in an aqueous solution. Understanding the Ksp for these reactions helps to predict the solubility of each salt under varying conditions in a solution.

Writing the Solubility Product Formula (Ksp) for Slightly Soluble Salt Equilibria Below are the reactions for slightly soluble salts and their dissociation in aqueous solutions. The aim is to express their solubility product constants (Ksp). a. Calcium Sulfide (CaS) Dissociation: \[ \text{CaS (s)} \leftrightarrow \text{Ca}^{2+} \text{(aq)} + \text{S}^{2-} \text{(aq)} \] b. Barium Sulfate (BaSO₄) Dissociation: \[ \text{BaSO}_4 \text{ (s) } \leftrightarrow \text{Ba}^{2+} \text{(aq)} + \text{SO}_4^{2-} \text{(aq)} \] c. Calcium Phosphate (Ca₃(PO₄)₂) Dissociation: \[ \text{Ca}_{3}(\text{PO}_{4})_{2} \text{ (s) } \leftrightarrow 3\text{Ca}^{2+} \text{(aq)} + 2\text{PO}_4^{3-} \text{(aq)} \] Explanation of Diagrams: 1. Chemical Equilibrium Arrows: - Double arrows (\( \leftrightarrow \)) indicate that the salt is in dynamic equilibrium with its ions in aqueous solution. 2. States of Matter: - (s) denotes solid. - (aq) denotes that the species are in an aqueous solution. Understanding the Ksp for these reactions helps to predict the solubility of each salt under varying conditions in a solution.

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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