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What is the final temperature in a squeezed cold pack that contains 50.0g of NH4NO3 dissolved in 125 mL of water? Assume a specific heat of 4.18 for the solution, an initial temperature of 27.0 C, and no heat transfer between the cold pack and the environment. Endothermic reaction equation: NH4NO3 (s) + H2O (l) yields NH4NO3 (aq) delta H = +25.7 kJ

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