TABLE 4-3. INTEGRAL AND DIFFERENTIAL HEATS OF SOLUTION FOR 1 MOLE oF H,SO, IN WATER AT 25°C ΔΗ Moles of Water (ni) AH, (cal/mole) AH, (cal/mole) (cal) -6,750 -6,740 -4,730 -2,320 -1,480 -1,040 -570 0.50 -3,810 -6,820 -9,960 -11,890 - 13,120 -14,740 - 16,240 - 16,990 -17,470 - 17,770 - 18,130 - 18,990 - 20,050 - 22,990 -438 -2,090 -5,320 -7,450 -8,960 -11,320 -13,910 -15,640 - 16,860 -17,480 -17,700 - 18,260 - 19,220 - 22,990 1 2 3 4 6. - 233 - 89.8 10 15 25 -24.4 50 -5.70 200 -2.16 800 -0.91 3,200 -0.26

TABLE 4-3. INTEGRAL AND DIFFERENTIAL HEATS OF SOLUTION FOR 1 MOLE oF H,SO, IN WATER AT 25°C ΔΗ Moles of Water (ni) AH, (cal/mole) AH, (cal/mole) (cal) -6,750 -6,740 -4,730 -2,320 -1,480 -1,040 -570 0.50 -3,810 -6,820 -9,960 -11,890 - 13,120 -14,740 - 16,240 - 16,990 -17,470 - 17,770 - 18,130 - 18,990 - 20,050 - 22,990 -438 -2,090 -5,320 -7,450 -8,960 -11,320 -13,910 -15,640 - 16,860 -17,480 -17,700 - 18,260 - 19,220 - 22,990 1 2 3 4 6. - 233 - 89.8 10 15 25 -24.4 50 -5.70 200 -2.16 800 -0.91 3,200 -0.26

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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In a coffee-cup calorimeter, 1.60 g NH4NO3 is mixed with 75.0 g water at an initial temperature of 25.00C. After dissolution of the salt, the final temperature of the calorimeter contents is 23.34C. Assuming the solution has a heat capacity of 4.18 J/C g and assuming no heat loss to the calorimeter, calculate the enthalpy change for the dissolution of NH4NO3 in units of kJ/mol.
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