Consider the dissolution of ammonium nitrate according to the following equation: NH,NO3(s) → NH, (aq) + NO; (aq) When 10.0 g of ammonium nitrate, NH,NO;, is dissolved in 98.5 g of water, the temperature solution decreases from 20.0°C to 13.2°C. (a) Calculate the heat lost by the solution. (Note that the mass of the solution is the mass of water plus NH,NO;, and assume that the specific heat of the solution is 4.18 J/g.°C) (b) If the heat capacity of the calorimeter is 20.0 J/°C, how much heat is lost by the calorimeter? (c) What is the total amount of heat absorbed by the system – that is, the dissolution of ammonium nitrate? (d) Calculate the enthalpy of solution of ammonium nitrate.

Consider the dissolution of ammonium nitrate according to the following equation: NH,NO3(s) → NH, (aq) + NO; (aq) When 10.0 g of ammonium nitrate, NH,NO;, is dissolved in 98.5 g of water, the temperature solution decreases from 20.0°C to 13.2°C. (a) Calculate the heat lost by the solution. (Note that the mass of the solution is the mass of water plus NH,NO;, and assume that the specific heat of the solution is 4.18 J/g.°C) (b) If the heat capacity of the calorimeter is 20.0 J/°C, how much heat is lost by the calorimeter? (c) What is the total amount of heat absorbed by the system – that is, the dissolution of ammonium nitrate? (d) Calculate the enthalpy of solution of ammonium nitrate.

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter4: Energy And Chemical Reactions

Section: Chapter Questions

Problem 65QRT

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