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# Calorimetry (Section)(a) When a 4.25-g sample of solid ## Problem 56E Chapter 5

Chemistry: The Central Science | 12th Edition

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Problem 56E

Calorimetry (Section)

(a) When a 4.25-g sample of solid ammonium nitrate dissolves in 60.0 g of water in a coffee-cup calorimeter (Figure), the temperature drops from 22.0 to 16.9 °C. Calculate ΔH (in kJ/mol NH4NO3) for the solution process:

Figure Coffee-cup calorimeter. This simple apparatus is used to measure temperature changes of reactions at constant pressure NH4NO3(s)→ NH4 +(aq) + NO3–(aq)

Assume that the specific heat of the solution is the same as that of pure water

(b) Is this process endothermic or exothermic?

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##### ISBN: 9780321696724

The full step-by-step solution to problem: 56E from chapter: 5 was answered by Sieva Kozinsky, our top Chemistry solution expert on 04/03/17, 07:58AM. Since the solution to 56E from 5 chapter was answered, more than 343 students have viewed the full step-by-step answer. This full solution covers the following key subjects: Water, temperature, solution, process, calorimeter. This expansive textbook survival guide covers 49 chapters, and 5471 solutions. This textbook survival guide was created for the textbook: Chemistry: The Central Science, edition: 12. Chemistry: The Central Science was written by Sieva Kozinsky and is associated to the ISBN: 9780321696724. The answer to “Calorimetry (Section)(a) When a 4.25-g sample of solid ammonium nitrate dissolves in 60.0 g of water in a coffee-cup calorimeter (Figure), the temperature drops from 22.0 to 16.9 °C. Calculate ?H (in kJ/mol NH4NO3) for the solution process:Figure Coffee-cup calorimeter. This simple apparatus is used to measure temperature changes of reactions at constant pressure NH4NO3(s)? NH4 +(aq) + NO3–(aq)Assume that the specific heat of the solution is the same as that of pure water(b) Is this process endothermic or exothermic?” is broken down into a number of easy to follow steps, and 80 words.

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