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4. Are the following salts more soluble at high temperatures or low temperatures? Why? a. Ca(OH)2(s) = Ca²*(aq) + 20H-(aq) AH° < 0 b. AgCl(s) = Ag*(aq) + Cl-(aq) ΔΗ' > 0

4. Are the following salts more soluble at high temperatures or low temperatures? Why? a. Ca(OH)2(s) = Ca²*(aq) + 20H-(aq) AH° < 0 b. AgCl(s) = Ag*(aq) + Cl-(aq) ΔΗ' > 0

Chemistry
Chemistry
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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
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Parts 4A and 4B please

**Solubility of Salts at Different Temperatures** **4. Are the following salts more soluble at high temperatures or low temperatures? Why?** **a.** \( \text{Ca(OH)}_2(s) \rightleftharpoons \text{Ca}^{2+}(aq) + 2\text{OH}^-(aq) \) - \( \Delta H^\circ < 0 \) **Explanation:** When the enthalpy change (\( \Delta H^\circ \)) is less than zero, the dissolution process is exothermic. Exothermic processes release heat, making the salts more soluble at lower temperatures. **b.** \( \text{AgCl}(s) \rightleftharpoons \text{Ag}^+(aq) + \text{Cl}^-(aq) \) - \( \Delta H^\circ > 0 \) **Explanation:** When the enthalpy change (\( \Delta H^\circ \)) is greater than zero, the dissolution process is endothermic. Endothermic processes absorb heat, making the salts more soluble at higher temperatures.
Transcribed Image Text:**Solubility of Salts at Different Temperatures** **4. Are the following salts more soluble at high temperatures or low temperatures? Why?** **a.** \( \text{Ca(OH)}_2(s) \rightleftharpoons \text{Ca}^{2+}(aq) + 2\text{OH}^-(aq) \) - \( \Delta H^\circ < 0 \) **Explanation:** When the enthalpy change (\( \Delta H^\circ \)) is less than zero, the dissolution process is exothermic. Exothermic processes release heat, making the salts more soluble at lower temperatures. **b.** \( \text{AgCl}(s) \rightleftharpoons \text{Ag}^+(aq) + \text{Cl}^-(aq) \) - \( \Delta H^\circ > 0 \) **Explanation:** When the enthalpy change (\( \Delta H^\circ \)) is greater than zero, the dissolution process is endothermic. Endothermic processes absorb heat, making the salts more soluble at higher temperatures.
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