The purpose of this experiment is to determine the enthalpy change for the process
NH4Cl(s) + H2O(l) → NH4Cl(aq)
Because this is a planning experiment, there are fewer details and instructions.
It is very similar to Enthalpy – Displacement but you don’t need to plot a temperature/time graph because the maximum temperature change occurs very rapidly.
Make a list of requirements including the masses and amounts needed; show the list to your teacher or technician.
Work this out for yourself and keep and keep an accurate record.
- Tabulate your results in an appropriate form.
- Calculate the enthalpy change of solution for the thermochemical equation in the aim.
Compare your result with the accepted value of +16.4 kJ mol-1. Suggest reasons for any difference.