Make sure you use all the correct key terminology.
Define lattice enthalpy of formation
For each pair of compounds, predict which will have the lattice enthalp of greatest magnitude, and explain why . LiF and NaF?
For each pair of compounds, predict which will have the lattice enthalp of greatest magnitude, and explain why . CaO or MgO ?
For each pair of compounds, predict which will have the lattice enthalp of greatest magnitude, and explain why . NaCl or MgCl2
The enthalpy of hydration of magnesium and sodium ions are -1920 and -406 kJmol-1 respectively. Explain why the enthalpy of hydration of Mg2+ has a greater magnitude than that of Na+