# Problem: Use the following information to calculate the ΔH° lattice of MgF2:Mg(s) → Mg(g)                     ΔH° =148 kJF2(g) → 2F(g)                       ΔH° =159 kJMg(g) → Mg+ (g)+e-              ΔH° =738 kJMg+(g) → Mg2+ (g)+e-          ΔH° =1450 kJF(g)+e- → F-(g)                     ΔH° =-328 kJMg(s) +F2(g) → MgF2 (s)      ΔH° =-1123 kJ_______ kJ

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###### Problem Details

Use the following information to calculate the ΔH° lattice of MgF2:

Mg(s) → Mg(g)                     ΔH° =148 kJ

F2(g) → 2F(g)                       ΔH° =159 kJ

Mg(g) → Mg(g)+e-              ΔH° =738 kJ

Mg+(g) → Mg2+ (g)+e-          ΔH° =1450 kJ

F(g)+e- → F-(g)                     ΔH° =-328 kJ

Mg(s) +F2(g) → MgF2 (s)      ΔH° =-1123 kJ

_______ kJ

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Lattice Energy concept. You can view video lessons to learn Lattice Energy. Or if you need more Lattice Energy practice, you can also practice Lattice Energy practice problems.

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Based on our data, we think this problem is relevant for Professor Korzeniewski's class at TTU.