Assignment:
a) When a 3.88g sample of solid ammonium nitrate dissolves in 60g of water in a coffee-cup calorimeter, the temperature drops from 23 degrees C to 18.4 degrees C. Calculate ^H (in kJ/mol NH4NO3) for the solution process
NH4NO3(s)---->NH4(aq) + + NO3-
Assume that the specific heat of the solution is the same as that of pure water.
b) Is this processes endothermic or exothermic?
Provide complete and step by step solution for the question and show calculations and use formulas.