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5. What could be added to a solution to increase the solubility of CaCO3 in water?

5. What could be added to a solution to increase the solubility of CaCO3 in water?

Chemistry
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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### Prelab Calculations 1. **Determine the Mass of \( \text{CaCl}_2 \cdot 2\text{H}_2\text{O}** - Molecular Weight (MW): 147.02 g/mole - Objective: Use a four-place analytical balance to prepare 100 mL of a 0.1005 M solution of \( \text{Ca}^{2+} \). 2. **Determine the Mass of KCl** - MW: 74.5513 g/mole - Objective: Use a four-place analytical balance to prepare 100 mL of a 1 M solution of KCl. 3. **Solubility Recording** - Task: Record the solubility of calcium carbonate in water (mg/L) in your notebook. 4. **Calculate Calcium Carbonate Not in Solution** - Task: Calculate the amount of calcium carbonate (mg) not in solution if a tablet is dissolved in 250 mL of water. The tablet’s label claims 600 mg calcium per tablet. 5. **Solubility Increase Inquiry** - Question: What could be added to a solution to increase the solubility of \( \text{CaCO}_3 \) in water? 6. **Net Ionic Equation** - Task: Write the net ionic equation for calcium carbonate in acidified water. **Additional Information:** - **Source of Calcium**: The calcium in the tablet to be analyzed is calcium carbonate (\( \text{CaCO}_3 \)). Calcium, as the \( \text{Ca}^{2+} \) ion, must be in solution to accurately quantitate the (mg calcium/tablet) using an ISE (Ion-Selective Electrode).
Transcribed Image Text:### Prelab Calculations 1. **Determine the Mass of \( \text{CaCl}_2 \cdot 2\text{H}_2\text{O}** - Molecular Weight (MW): 147.02 g/mole - Objective: Use a four-place analytical balance to prepare 100 mL of a 0.1005 M solution of \( \text{Ca}^{2+} \). 2. **Determine the Mass of KCl** - MW: 74.5513 g/mole - Objective: Use a four-place analytical balance to prepare 100 mL of a 1 M solution of KCl. 3. **Solubility Recording** - Task: Record the solubility of calcium carbonate in water (mg/L) in your notebook. 4. **Calculate Calcium Carbonate Not in Solution** - Task: Calculate the amount of calcium carbonate (mg) not in solution if a tablet is dissolved in 250 mL of water. The tablet’s label claims 600 mg calcium per tablet. 5. **Solubility Increase Inquiry** - Question: What could be added to a solution to increase the solubility of \( \text{CaCO}_3 \) in water? 6. **Net Ionic Equation** - Task: Write the net ionic equation for calcium carbonate in acidified water. **Additional Information:** - **Source of Calcium**: The calcium in the tablet to be analyzed is calcium carbonate (\( \text{CaCO}_3 \)). Calcium, as the \( \text{Ca}^{2+} \) ion, must be in solution to accurately quantitate the (mg calcium/tablet) using an ISE (Ion-Selective Electrode).
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