C. DETERMINATIONMass of empty calorimeter cupsMass of calorimeter cups - H₂OMass of waterMass of anhydrous MgSO (s)Moles of anhydrous MgSO (s)Calculations:Temperature Readings, 'CInitial (0)½ minute1 minute1½ minutes2 minutes3 minutes4 minutes4½ minutesOF MOLAR HEAT OF SOLVATION4.60343.91034.241 82.0090.017 mol5 minutes5½ minutes6 minutes6½ minutes7 minutes7½ minutes8 minutes8½ minutes9 minutes20.60⁰°C20.60°C20.60°C20.60°C20.60°CAdd MgSO, to water25.50°C25.90°C26.00° C26-10° C26.20° C26.30° C26.30°C26.30°C26.30° C26-30°C26.30°C Initial temperature (2 minutes)Highest temperature attained (4-9 minutes)Change in temperature, ATHeat absorbed by H.O.qHeat released by solvation ofanhydrous MgSO,, qMolar Heat of Solvation, AHCalculations:'CJ/mole1. Solid anhydrous MgSO, is very hydroscopic. When exposed to moist air it will pick up water to formMgSO, XH,O. What is the classification of compounds formed by salts containing H₂O molecules intheir crystal lattice structure?2. Relating to question 1, how might you remove the water from MgSO, XH,O?3. MgSO, XH,O can be purchased "over the counter." What is the "common" name for MgSO, XH,O?

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C. DETERMINATION OF MOLAR HEAT OF SOLVATION 4.603 Mass of empty calorimeter cups Mass of calorimeter cups - H₂O Mass of water Mass of anhydrous MgSO (s) Moles of anhydrous MgSO (s) Calculations: Temperature Readings, 'C Initial (0) ½ minute 1 minute 1 ½ minutes 2 minutes 3 minutes 4 minutes 4½ minutes 5 minutes 5½ minutes 6 minutes. 6½ minutes. 7 minutes 7½ minutes 8 minutes 8½ minutes 9 minutes 43.910 34.241 2.009 0.017 -8 -8 mol 20.60˚C 20.00°C 20.60°C 20.60°C 20.6.0°C Add MgSO, to water 25.50°C 25.90°C 26.00° C 26.10 C 26.20° C 26.30° C 26.30°C 26.30°C 26.30 C 26.30°C 26.30°C

C. DETERMINATION OF MOLAR HEAT OF SOLVATION 4.603 Mass of empty calorimeter cups Mass of calorimeter cups - H₂O Mass of water Mass of anhydrous MgSO (s) Moles of anhydrous MgSO (s) Calculations: Temperature Readings, 'C Initial (0) ½ minute 1 minute 1 ½ minutes 2 minutes 3 minutes 4 minutes 4½ minutes 5 minutes 5½ minutes 6 minutes. 6½ minutes. 7 minutes 7½ minutes 8 minutes 8½ minutes 9 minutes 43.910 34.241 2.009 0.017 -8 -8 mol 20.60˚C 20.00°C 20.60°C 20.60°C 20.6.0°C Add MgSO, to water 25.50°C 25.90°C 26.00° C 26.10 C 26.20° C 26.30° C 26.30°C 26.30°C 26.30 C 26.30°C 26.30°C

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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