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Chapter16: Solutions
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Problem 25E
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**Title: Visualizing Ionic Compounds in Solution**

**Objective:**
Determine which diagram best represents the ionic compound \( \text{K}_2\text{SO}_4 \) dissolved in water.

**Diagrams:**
The image presents four diagrams, each illustrating different arrangements of ions. The task is to identify the one that accurately depicts the dissolution of potassium sulfate in water.

**Descriptions of Diagrams:**

1. **First Diagram (Top Left):**
   - Features five blue spheres labeled "2-" and four smaller gray spheres labeled "+."

2. **Second Diagram (Bottom Left):**
   - Displays four blue spheres labeled "2-" and five smaller gray spheres labeled "+" scattered throughout.

3. **Third Diagram (Top Right):**
   - Contains three blue spheres labeled "2-" and two smaller gray spheres labeled "+".

4. **Fourth Diagram (Bottom Right):**
   - Shows clusters of blue and gray spheres. Two clusters consist of one blue "2-" sphere surrounded by smaller gray "+" spheres.

**Analysis:**
In an aqueous solution, \( \text{K}_2\text{SO}_4 \) separates into its constituent ions: \( \text{2K}^+ \) and \( \text{SO}_4^{2-} \). The correct depiction will reflect the ratio of these ions. Consider the stoichiometric balance of \( \text{K}_2\text{SO}_4 \), which dissociates completely in water to produce two \( \text{K}^+ \) ions for every \( \text{SO}_4^{2-} \) ion.

**Conclusion:**
Upon examining the diagrams, select the one that correctly represents the ionic dissociation of \( \text{K}_2\text{SO}_4 \) in a 2:1 ratio of \( \text{K}^+ \) to \( \text{SO}_4^{2-} \) ions.
Transcribed Image Text:**Title: Visualizing Ionic Compounds in Solution** **Objective:** Determine which diagram best represents the ionic compound \( \text{K}_2\text{SO}_4 \) dissolved in water. **Diagrams:** The image presents four diagrams, each illustrating different arrangements of ions. The task is to identify the one that accurately depicts the dissolution of potassium sulfate in water. **Descriptions of Diagrams:** 1. **First Diagram (Top Left):** - Features five blue spheres labeled "2-" and four smaller gray spheres labeled "+." 2. **Second Diagram (Bottom Left):** - Displays four blue spheres labeled "2-" and five smaller gray spheres labeled "+" scattered throughout. 3. **Third Diagram (Top Right):** - Contains three blue spheres labeled "2-" and two smaller gray spheres labeled "+". 4. **Fourth Diagram (Bottom Right):** - Shows clusters of blue and gray spheres. Two clusters consist of one blue "2-" sphere surrounded by smaller gray "+" spheres. **Analysis:** In an aqueous solution, \( \text{K}_2\text{SO}_4 \) separates into its constituent ions: \( \text{2K}^+ \) and \( \text{SO}_4^{2-} \). The correct depiction will reflect the ratio of these ions. Consider the stoichiometric balance of \( \text{K}_2\text{SO}_4 \), which dissociates completely in water to produce two \( \text{K}^+ \) ions for every \( \text{SO}_4^{2-} \) ion. **Conclusion:** Upon examining the diagrams, select the one that correctly represents the ionic dissociation of \( \text{K}_2\text{SO}_4 \) in a 2:1 ratio of \( \text{K}^+ \) to \( \text{SO}_4^{2-} \) ions.
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