Problem

Use the values in the table to calculate the lattice enthalpy of magnesium oxide.

Enthalpy change	$\Delta H^\ominus / \text{kJ mol}^{-1}$
enthalpy of formation of magnesium oxide	−602
enthalpy of atomization of oxygen	248
first electron affinity of oxygen	−142
second electron affinity of oxygen	753
first ionization enthalpy of magnesium	736
second ionization enthalpy of magnesium	1450
enthalpy of atomization of magnesium	150