The Heat of Solution of Ammonium Nitrate Is 26

question 63

Multiple Choice

The heat of solution of ammonium nitrate is 26.2 kJ/mol.If a 5.368 g sample of NH₄NO₃ is added to 40.0 mL of water in a calorimeter at 23.5°C, what is the minimum temperature reached by the solution? (The specific heat of water = 4.18 J/g·°C; the heat capacity of the calorimeter = 650.J/°C.)

• A)-7.7°C
• B)14.3°C
• C)20.8°C
• D)21.4°C
• E)25.6°C

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