a) In a coffee cup calorimeter, you dissolve 4.25g of solid ammonium nitrate in 60.0g of water. The temperature drops from 22.0°C to 16.9 C. Assuming the solution has a heat capacity of 4.18 J/(g C) and assuming no heat loss to the calorimeter, calculate the enthalpy change for the dissolution of NH&NO3 in units of kJ/mol. b) NH4NO3 is often used to make instant ice packs. You wish to manufacture an ice pack that contains a total of 600. g of water and ammonium nitrate (that is, the total mass of everything combined in the ice pack should be 600. grams) You wish to design the pack such that, when the ammonium nitrate is mixed with the water at a temperature of 25.0°C, the final temperature after dissolving will be 5.0°C. ammonium nitrate should be used in each ice pack? Please use your answer to part a) to help you, and please assume the water/ammonium nitrate mixture has a specific heat of 4.2 J/(g°C) What mass of

a) In a coffee cup calorimeter, you dissolve 4.25g of solid ammonium nitrate in 60.0g of water. The temperature drops from 22.0°C to 16.9 C. Assuming the solution has a heat capacity of 4.18 J/(g C) and assuming no heat loss to the calorimeter, calculate the enthalpy change for the dissolution of NH&NO3 in units of kJ/mol. b) NH4NO3 is often used to make instant ice packs. You wish to manufacture an ice pack that contains a total of 600. g of water and ammonium nitrate (that is, the total mass of everything combined in the ice pack should be 600. grams) You wish to design the pack such that, when the ammonium nitrate is mixed with the water at a temperature of 25.0°C, the final temperature after dissolving will be 5.0°C. ammonium nitrate should be used in each ice pack? Please use your answer to part a) to help you, and please assume the water/ammonium nitrate mixture has a specific heat of 4.2 J/(g°C) What mass of

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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