Data Table 2: The Heat of Solution for Calcium Chloride and Ammonium Chloride Calcium Chloride Ammonium Chloride 10 g 10 g 15 g 15 g CaCl, 5 g NH.CI 5 g CaCl, CaCl, NH,CI NH,CI l00g 100g 100g 1009 100g/100g Mass of water (g) 5g10g Mass of salt (g) 15g 10g Moles of salt (g x mol/g) 23°C 23°C 23° 23°C 23°C 23°c 28°C 33°C 39°C 20°C 17°c14°c Initial temperature (°C) T, Final temperature (°C) T, Change in temperature (°C) AT = T,-T, Heat absorbed by the solution (J) q =-[C x m x AT] Heat capacity of the calorimeter (J/°C) Heat absorbed by the calorimeter (J) q.=-[C x AT] Enthalpy of solution (J) AH = q, + 9cal %3D Enthalpy of solution (kJ) Enthalpy/mole of solution (kJ/mol) Average enthalpy/mole of solution (kJ/mol)

Data Table 2: The Heat of Solution for Calcium Chloride and Ammonium Chloride Calcium Chloride Ammonium Chloride 10 g 10 g 15 g 15 g CaCl, 5 g NH.CI 5 g CaCl, CaCl, NH,CI NH,CI l00g 100g 100g 1009 100g/100g Mass of water (g) 5g10g Mass of salt (g) 15g 10g Moles of salt (g x mol/g) 23°C 23°C 23° 23°C 23°C 23°c 28°C 33°C 39°C 20°C 17°c14°c Initial temperature (°C) T, Final temperature (°C) T, Change in temperature (°C) AT = T,-T, Heat absorbed by the solution (J) q =-[C x m x AT] Heat capacity of the calorimeter (J/°C) Heat absorbed by the calorimeter (J) q.=-[C x AT] Enthalpy of solution (J) AH = q, + 9cal %3D Enthalpy of solution (kJ) Enthalpy/mole of solution (kJ/mol) Average enthalpy/mole of solution (kJ/mol)

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

Chapter6: Thermochemistry

Section: Chapter Questions

Problem 68E: In a coffee-cup calorimeter, 1.60 g NH4NO3 is mixed with 75.0 g water at an initial temperature of...

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