Instant cold packs used to treat athletic injuries contain solid NH, NO3 and a pouch of water. When the pack is squeezed, the pouch breaks and the solid dissolves, lowering the temperature because of the endothermic reaction NH, NO3(s) + H₂O(1)→ NH4NO3(aq) AH = +257 kJ V Part A What is the final temperature in a squeezed cold pack that contains 42 5 g of NH, NO, dissolved in 125 mL of water? Assume a specific heat of 4.18J/(g° C) for the solution, an initial temperature of 30 0 °C, and no heat transfer between the cold pack and the environment. ΕΠΙ ΑΣΦ • A C E ? °C Request Answer Submit

Instant cold packs used to treat athletic injuries contain solid NH, NO3 and a pouch of water. When the pack is squeezed, the pouch breaks and the solid dissolves, lowering the temperature because of the endothermic reaction NH, NO3(s) + H₂O(1)→ NH4NO3(aq) AH = +257 kJ V Part A What is the final temperature in a squeezed cold pack that contains 42 5 g of NH, NO, dissolved in 125 mL of water? Assume a specific heat of 4.18J/(g° C) for the solution, an initial temperature of 30 0 °C, and no heat transfer between the cold pack and the environment. ΕΠΙ ΑΣΦ • A C E ? °C Request Answer Submit

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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