Calculate the molar solubility of Ca(OH)2 in the presence of the dissolved CaCl2 for each trial

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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Part B: Calculate the molar solubility of Ca(OH)2 in the presence of the dissolved CaCl2 for each trial. Thank you!!

Part B
Trial 1
Trial 2
Volume of sample analyzed (mL)
25.00
25.00
Initial buret reading (mL)
0.03
19.85
Final buret reading (mL)
19.85
38.90
Transcribed Image Text:Part B Trial 1 Trial 2 Volume of sample analyzed (mL) 25.00 25.00 Initial buret reading (mL) 0.03 19.85 Final buret reading (mL) 19.85 38.90
Part A
2 Obtain a sample of saturated Ca(OH)2 solution (without added CaC2) from your instructor.
Dinet 25 mL of the saturated Ca(OH)2 solution into a 125 mL flask and add 2 drops of methyl orange
indicator.
4 Titrate the Ca(OH)2 solution to the methyl orange endpoint, where the color changes from yellow to red.
4.
Remember, the addition of HCI should stop within one-half drop of the end point. Read and record the final
volume of standard HCl in the buret.
5. Titrate an additional 25 mL aliquot of the saturated Ca(OH)2 solution.
Data Analysis
Calculate the molar solubility and solubility product of Ca(OH)2 for each trial and report their
average
values.
Part B- Molar Solubility of Calcium Hydroxide in the Presence of a Common Ion
6. Repeat Steps 2-5 using a sample of saturated Ca(OH)2 solution containing added CaCl.
7 Discard all of the reaction mixtures and HCI solution in the buret into the sink, followed by a generous
supply of tap water. Rinse the buret twice with tap water and twice with deionized water.
Data Analysis
Calculate the molar solubility of Ca(OH)2 in the presence of the dissolved CaCl2 for each trial and report its average
value.
Transcribed Image Text:Part A 2 Obtain a sample of saturated Ca(OH)2 solution (without added CaC2) from your instructor. Dinet 25 mL of the saturated Ca(OH)2 solution into a 125 mL flask and add 2 drops of methyl orange indicator. 4 Titrate the Ca(OH)2 solution to the methyl orange endpoint, where the color changes from yellow to red. 4. Remember, the addition of HCI should stop within one-half drop of the end point. Read and record the final volume of standard HCl in the buret. 5. Titrate an additional 25 mL aliquot of the saturated Ca(OH)2 solution. Data Analysis Calculate the molar solubility and solubility product of Ca(OH)2 for each trial and report their average values. Part B- Molar Solubility of Calcium Hydroxide in the Presence of a Common Ion 6. Repeat Steps 2-5 using a sample of saturated Ca(OH)2 solution containing added CaCl. 7 Discard all of the reaction mixtures and HCI solution in the buret into the sink, followed by a generous supply of tap water. Rinse the buret twice with tap water and twice with deionized water. Data Analysis Calculate the molar solubility of Ca(OH)2 in the presence of the dissolved CaCl2 for each trial and report its average value.
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