Determining the Ksp of Calcium HydroxideCalcium hydroxide is an ionic solid that is sparingly soluble in water. A saturated, aqueous, solution of Ca(OH)2is represented in equation form as shown below.Ca(OH)2 (s) → Ca²+ (aq) + 2OH(aq)The solubility product expression describes, in mathematical terms, the equilibrium that is established betweenthe solid substance and its dissolved ions in an aqueous system. The equilibrium expression for calciumhydroxide is shown below.Ksp = [Ca²+][OH-]²The constant that illustrates a substance's solubility in water is called the Ksp. All compounds, even the highlysoluble sodium chloride, have a Ksp. However, the Ksp of a compound is commonly considered only in caseswhere the compound is very slightly soluble and the amount of dissolved ions is not simple to measure.Your primary objective in this experiment is to test a saturated solution of calcium hydroxide and use yourobservations and measurements to calculate the Ksp of the compound. You will do this by titrating the preparedCa(OH)2 solution with a standard hydrochloric acid solution. By determining the molar concentration ofdissolved hydroxide ions in the saturated Ca(OH)2 solution, you will have the necessary information to calculatethe Ksp.OBJECTIVESIn this experiment, you will• Titrate a saturated Ca(OH)2 solution with a standard HCl solution.• Determine the [OH-] for the saturated Ca(OH)2 solution.• Calculate the Ksp of Ca(OH)2.solution 0.050M hydrochloricacid, HC.50 те са сонда213Intereuptent CREDMOLDFigure 1 Complete the following table and answer the questions, showing all of your calculations.TrialEquivalence point(mL)110.5mb210 тв311.8 mlQuestions:1. Calculate the [OH-] in the saturated solution from the results of your titrations.2. Calculate the [Ca²+] in the saturated solution.3. Calculate the Kp for calcium hydroxide.spsp4. Find the accepted value of the Kp for calcium hydroxide and compare it with your value.Discuss the discrepancy and suggest possible sources of experimental error.

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Complete the following table and answer the questions, showing all of your calculations. Trial Equivalence point (mL) 1 10.5 ml 2 10 ml 3 11.8 ml Questions: 1. Calculate the [OH-] in the saturated solution from the results of your titrations. 2. Calculate the [Ca2+] in the saturated solution. 3. Calculate the Kp for calcium hydroxide. 4. Find the accepted value of the Kp for calcium hydroxide and compare it with your value. Discuss the discrepancy and suggest possible sources of experimental error.

Complete the following table and answer the questions, showing all of your calculations. Trial Equivalence point (mL) 1 10.5 ml 2 10 ml 3 11.8 ml Questions: 1. Calculate the [OH-] in the saturated solution from the results of your titrations. 2. Calculate the [Ca2+] in the saturated solution. 3. Calculate the Kp for calcium hydroxide. 4. Find the accepted value of the Kp for calcium hydroxide and compare it with your value. Discuss the discrepancy and suggest possible sources of experimental error.

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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