5.2.1 (c,d,e,) Enthalpies of Hydration & solution, and related enthalpy cycles

(c) explanation and use of the terms:

(i) enthalpy change of solution (dissolving of 1 mol of solute, ∆H_sol)

(ii) enthalpy change of hydration (dissolving of 1 mol of gaseous ions in water, ∆H_hyd)

{Definitions required.}

{Details of infinite dilution not required.}

(d) use of the enthalpy change of solution of a simple ionic solid (i.e. NaCl, MgCl₂) and relevant energy terms (enthalpy change of hydration and lattice enthalpy) for:

(i) the construction of enthalpy cycles

(ii) related calculations

(e) qualitative explanation of the effect of ionic charge and ionic radius on the exothermic value of a lattice enthalpy and enthalpy change of hydration.