What is the lattice energy of LiI? Given the information below.

[stacker]

Homework Statement

What is the lattice energy of LiI? Given the information below.

Heat of formation for LiI = -270 kJ/mol

Heat of sublimation for Li = 159.40 kJ/mol

Ionization energy for Li = 520 kJ/mol

Bond dissociation energy for I2 = 149 kJ/mol

Electron affinity for I = - 295 kJ/mol

Heat of sublimation for I2 = 48.30 kJ/mol

Homework Equations

The Attempt at a Solution

Could someone give me a hint?

 

[nickdk]

This should help tremendously:

http://answers.yahoo.com/question/index?qid=20080121195206AA88t5P