f21 > Macmillan Learning Consider an ionic compound, MX3, composed of generic metal M and generic gaseous halogen X. • The enthalpy of formation of MX3 is AH = -889 kJ/mol. ⚫ The enthalpy of sublimation of M is AH sub 127 kJ/mol. • The first, second, and third ionization energies of M are IE₁ = 569 kJ/mol, IE2 1735 kJ/mol, and IE3 2683 kJ/mol. • The electron affinity of X is AHEA = -357 kJ/mol. (Refer to the hint). ⚫ The bond energy of X2 is BE = 241 kJ/mol. Determine the lattice energy of MX3. AH lattice= kJ/mol

Chemistry & Chemical Reactivity
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Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
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Chapter12: The Solid State
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Macmillan Learning
Consider an ionic compound, MX3, composed of generic metal M and generic gaseous halogen X.
• The enthalpy of formation of MX3 is AH = -889 kJ/mol.
⚫ The enthalpy of sublimation of M is AH sub 127 kJ/mol.
• The first, second, and third ionization energies of M are IE₁
=
569 kJ/mol, IE2
1735 kJ/mol, and IE3
2683 kJ/mol.
• The electron affinity of X is AHEA = -357 kJ/mol. (Refer to the hint).
⚫ The bond energy of X2 is BE = 241 kJ/mol.
Determine the lattice energy of MX3.
AH lattice=
kJ/mol
Transcribed Image Text:f21 > Macmillan Learning Consider an ionic compound, MX3, composed of generic metal M and generic gaseous halogen X. • The enthalpy of formation of MX3 is AH = -889 kJ/mol. ⚫ The enthalpy of sublimation of M is AH sub 127 kJ/mol. • The first, second, and third ionization energies of M are IE₁ = 569 kJ/mol, IE2 1735 kJ/mol, and IE3 2683 kJ/mol. • The electron affinity of X is AHEA = -357 kJ/mol. (Refer to the hint). ⚫ The bond energy of X2 is BE = 241 kJ/mol. Determine the lattice energy of MX3. AH lattice= kJ/mol
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