The Heat of Solution of Ammonium Nitrate Is 26

question 11

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 final temperature of the solution? The specific heat of water is 4.18 J/g·°C and the heat capacity of the calorimeter is 0.650 kJ/°C.

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

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