Calculate the lattice energy of magnesium sulfide from the data given below. Mg(s) Mg(g) AE 148 kJ/mol Mg2g) 8S(g) AE 2232 kJ/mol 2e AE 2186 kJ/mol Mg(g) S8(s) Sig) 2eSg) AE= 450 kJ/mol 8Mg(s)S8(s) -» 8M9S(s) AE = -2744 kJ/mol Mg2+(g) S2g) MgS(s) AElattice = ?

Calculate the lattice energy of magnesium sulfide from the data given below. Mg(s) Mg(g) AE 148 kJ/mol Mg2g) 8S(g) AE 2232 kJ/mol 2e AE 2186 kJ/mol Mg(g) S8(s) Sig) 2eSg) AE= 450 kJ/mol 8Mg(s)S8(s) -» 8M9S(s) AE = -2744 kJ/mol Mg2+(g) S2g) MgS(s) AElattice = ?

Chemistry: The Molecular Science

5th Edition

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Publisher:John W. Moore, Conrad L. Stanitski

Chapter19: The Chemistry Of The Main-group Elements

Section: Chapter Questions

Problem 96QRT: Use a Born-Haber cycle (Sec. 5-13) to calculate the lattice energy of MgF2 using these thermodynamic...

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hat is the enthalpy change for a process? Is enthalpy a state function? In what experimental apparatus are enthalpy changes measured?
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The lattice energy of LiF is 1023 kJ/mol, and the LiF distance is 201 pm. MgO crystallizes in the same structure as LiF but with a Mg—O distance of 205 pm. Which of the following values most closely approximates the lattice energy of MgO: 256 kJ/mol, 512 kJ/mol, 1023 kJ/mol, 2046 kJ/mol, or 4008 kJ/mol? Explain your choice.
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Given the following data: NO2(g) NO(g) + O(g)H = 233 kJ 2O3(g) 3O2(g)H = 427 kJ NO(g) + O3(g) NO2(g) + O2(g)H = 199 kJ Calculate the bond energy for the O2 bond, that is, calculate H for: O2(g) 2O(g)H = ?

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