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Use the following data to estimate ΔHf° for magnesium fluoride.

Mg(s) + F2(g) --> MgF2(s)

lattice energy

-2957 kJ/mol

first ionization energy of Mg

735 kJ/mol

second ionization energy of Mg

1445 kJ/mol

electron affinity of F

-328 kJ/mol

bond energy of F2

154 kJ/mol

enthalpy of sublimation of Mg

150. kJ/mol

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