Answer to Question #62609 in General Chemistry for Kendra Hearn

Question

6. a. When a 3.88 g sample of solid ammonium nitrate was dissolved in 60.0 g of water in a coffee cup calorimeter, the temperature dropped from 23.0C to 18.4C. Calculate H (in kJ per mole of NH4NO3) for the solution process. Assume that the specific heat of the solution is the same as that of pure water (Hint: include the mass of NH4NO3 in the total mass of the solution).