Consider an ionic compound, MX3, composed of generic metal M and generic gaseous halogen X. • The enthalpy of formation of MX3 is AH; = -885 kJ/mol. • The enthalpy of sublimation of M is AH sub = 121 kJ/mol. • The first, second, and third ionization energies of M are IE₁ = 649 kJ/mol, IE₂ = 1635 kJ/mol, and IE3 = 2689 kJ/mol. • The electron affinity of X is AHEA = −319 kJ/mol. (Refer to the hint). • The bond energy of X₂ is BE = 191 kJ/mol. Determine the lattice energy of MX3. kJ/mol AH lattice =

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Consider an ionic compound, MX3, composed of generic metal M and generic gaseous halogen X.
• The enthalpy of formation of MX3 is AH; = -885 kJ/mol.
• The enthalpy of sublimation of M is AH sub = 121 kJ/mol.
• The first, second, and third ionization energies of M are IE₁ = 649 kJ/mol, IE2 = 1635 kJ/mol, and IE3 = 2689 kJ/mol.
• The electron affinity of X is AHEA = -319 kJ/mol. (Refer to the hint).
• The bond energy of X₂ is BE = 191 kJ/mol.
Determine the lattice energy of MX3.
ΔΗ
kJ/mol
=
lattice
Transcribed Image Text:Consider an ionic compound, MX3, composed of generic metal M and generic gaseous halogen X. • The enthalpy of formation of MX3 is AH; = -885 kJ/mol. • The enthalpy of sublimation of M is AH sub = 121 kJ/mol. • The first, second, and third ionization energies of M are IE₁ = 649 kJ/mol, IE2 = 1635 kJ/mol, and IE3 = 2689 kJ/mol. • The electron affinity of X is AHEA = -319 kJ/mol. (Refer to the hint). • The bond energy of X₂ is BE = 191 kJ/mol. Determine the lattice energy of MX3. ΔΗ kJ/mol = lattice
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