Question

isnt the molar solubility of Ca(OH)2 with added CaCl2 supposed to be less than the molar solubility of Ca(OH)2 by itself? where did I mess up?

A. Molar Solubility and Solubility Product of Calcium Hydroxide メーーー Desk No. Trial 1 Trial 2 Trial 3 1. Volume of saturated CalOHD, solution (ml) 2. Concentration of standardized HCI solution (mol/L) 3. Buret reading, initial (mL) . 4. Buret reading,final(mL) 5. Volume of HCI added (mL) 6. Moles of HCl added (mol) 7. Moles of OH in saturated solution (mol) 8. OH], equilibrium (mol/L) 9. ICa2'], equilibrium (moVL) . 25.0 25.0 25.0 0.05 ure empned . , 2.9mL 30. 1.03x10-3-A3x10-4 1.03x10-3 0.0aam 0.0113 0.0113 1.8 19.0 4.5x10-4 . q5x10- qAxio-4 00a 0.0310. 0.O00.0108 .0llo 0.:0110 0.0109 0.00 10. Molar solubility of Ca(OH) (mol/L) 11. Average molar solubility of Ca(OH) (mo/L) 12. Ksp of Ca(OH) 5. Захі0" ±3.GGXO-7 (o.8% Data Analysis, B 13. Average Kp 14. Standard deviation of Kyp 15. Relative standard deviation of K,p (%RSD) Data Analysis, Data Analysis, D B. Molar Solubility of Calcium Hydroxide in the Presence of a Common Ion Trial I Trial 2 Trial 3 1. Volume of saturated Ca(OH)2 with added CaCl solution (mL) 2. Concentration of standardized HCI solution (mo/L) 3. Buret reading, initial (mL) 4. Buret reading, final (mL) 5. Volume of HCl added (mL) 6. Moles of HCI added (mol) 7. Moles of OH in saturated solution (mol) 8. IOH], equilibrium (moV/L) 9. Molar solubility of Ca(OH), with added 25.0 25.0 25.0 0.05 32.6 30.8 30.J33.6 3a.1 32.1 54xI0 aane 0.03 0.0883 0014 0.01300 14I CaCl, (moVL) 10. Average molar solubility of Ca(OH), with added 0.0 140 CaCl2 (mol/L) Account for the different molar solubilities in Part A.11 and Part B.10 (Report Sheet)

Answer 1

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