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When a 4.25 g sample of solid ammonium nitrate dissolves in 60.0 g of water in a coffee-cup calorimeter, the temperature drops from 22.0 degrees C to 16.9 degrees C.

Calculate Delta H kJ/mol NH4NO3 for the solution process

NH4NO3 ( s) yields NH4 (there is a plus sign above the four)(aq) + ^ + NO3(negative sign above the three) (aq)

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

Express your answer to two significant figures and include the appropriate units.

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