(Answered) Please help thanks for an experiment you have a calorimeter

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Please help! Thanks! For an experiment, you have a calorimeter with 350 g of water at 24°C. 175 g of crystalline ammonium nitrate from a cold pack is placed into the calorimeter. When the ammonium nitrate finishes dissolving in the water, the temperature of the water inside the calorimeter is 5.5°C. The total mass of the solution is 525 g and the specific heat of the solution is 4.18 J/g °C (the same as water). What is the enthalpy of dissolving (ΔHdissolving) of in J/g ammonium nitrate? Work must be shown in order to earn credit. q = m x C x ΔT

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