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Calculate the molar solubility and solubility product of Ca(OH)2 for each trial.

Calculate the molar solubility and solubility product of Ca(OH)2 for each trial.

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
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Calculate the molar solubility and solubility product of Ca(OH)2 for each trial. Thank you!

**Concentration of Standardized HCl Solution** - **Molarity (M):** 0.0646 **Part A** | Parameter | Trial 1 | Trial 2 | |------------------------------------|---------|---------| | Volume of sample analyzed (mL) | 25.00 | 25.00 | | Initial buret reading (mL) | 0.75 | 26.03 | | Final buret reading (mL) | 25.80 | 50.40 |
Transcribed Image Text:**Concentration of Standardized HCl Solution** - **Molarity (M):** 0.0646 **Part A** | Parameter | Trial 1 | Trial 2 | |------------------------------------|---------|---------| | Volume of sample analyzed (mL) | 25.00 | 25.00 | | Initial buret reading (mL) | 0.75 | 26.03 | | Final buret reading (mL) | 25.80 | 50.40 |
### Molar Solubility and Solubility Product of Calcium Hydroxide 1. **Preparation of Buret:** - Prepare a clean 50 mL buret for titration. Rinse the buret and tip with three 5 mL portions of standardized 0.05 M HCl solution, then discard the rinses. - Fill the buret with the standardized 0.05 M HCl, ensuring to remove any air bubbles in the tip. After 10–15 seconds, read and record the initial volume using all certain digits from the labeled calibration marks on the buret, plus one uncertain digit. 2. **Saturated Solution:** - Obtain a sample of saturated Ca(OH)₂ solution (without added CaCl₂) from your instructor. 3. **Sample Preparation:** - Pipet 25 mL of the saturated Ca(OH)₂ solution into a 125 mL flask. Add 2 drops of methyl orange indicator to the flask. 4. **Titration Process:** - Titrate the Ca(OH)₂ solution to the methyl orange endpoint, at which point the solution's color changes from yellow to red. Stop the addition of HCl within half a drop of the endpoint. Record the final volume of HCl in the buret. 5. **Additional Titration:** - Titrate an additional 25 mL aliquot of the saturated Ca(OH)₂ solution following the same process. ### Data Analysis - Calculate the molar solubility and solubility product of Ca(OH)₂ for each trial. Report the average values obtained from the experiments.
Transcribed Image Text:### Molar Solubility and Solubility Product of Calcium Hydroxide 1. **Preparation of Buret:** - Prepare a clean 50 mL buret for titration. Rinse the buret and tip with three 5 mL portions of standardized 0.05 M HCl solution, then discard the rinses. - Fill the buret with the standardized 0.05 M HCl, ensuring to remove any air bubbles in the tip. After 10–15 seconds, read and record the initial volume using all certain digits from the labeled calibration marks on the buret, plus one uncertain digit. 2. **Saturated Solution:** - Obtain a sample of saturated Ca(OH)₂ solution (without added CaCl₂) from your instructor. 3. **Sample Preparation:** - Pipet 25 mL of the saturated Ca(OH)₂ solution into a 125 mL flask. Add 2 drops of methyl orange indicator to the flask. 4. **Titration Process:** - Titrate the Ca(OH)₂ solution to the methyl orange endpoint, at which point the solution's color changes from yellow to red. Stop the addition of HCl within half a drop of the endpoint. Record the final volume of HCl in the buret. 5. **Additional Titration:** - Titrate an additional 25 mL aliquot of the saturated Ca(OH)₂ solution following the same process. ### Data Analysis - Calculate the molar solubility and solubility product of Ca(OH)₂ for each trial. Report the average values obtained from the experiments.
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