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
Correct Answer:
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