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Author Question: Calculate the lattice energy for NaCl(s) using a Born-Haber cycle and the following ... (Read 71 times)

burton19126

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Question 1

Calculate the energy change for the formation of LiCl(s) from its elements in their standard states and the following tabulated information:

Li(s) + 1/2 Cl2(g) → LiCl(s)?
Li+(g) + Cl-(g) → LiCl(s)-853 kJ/mol
Li(s) → Li(g)+159.4 kJ/mol
1/2 Cl2(g) → Cl(g)+121.7 kJ/mol
Cl(g) + e- → Cl-(g)-348.6 kJ/mol
Li(g) → Li+(g) + e-+520.2 kJ/mol

◦ -400.3 kJ/mol
◦ +1305.7 kJ/mol
◦ -627.2 kJ/mol
◦ +296.9 kJ/mol

Question 2

Calculate the lattice energy for NaCl(s) using a Born-Haber cycle and the following information:

NaCl(s) → Na+(g) + Cl-(g)?
Na(s) + 1/2 Cl2(g) → NaCl(s)-411.0 kJ/mol
Na(s) → Na(g)+107.3 kJ/mol
Na(g) → Na+(g) + e-+495.8 kJ/mol
1/2 Cl2(g) → Cl(g)+121.7 kJ/mol
Cl(g) + e- → Cl-(g)-348.6 kJ/mol

◦ +787.2 kJ/mol
◦ +34.8 kJ/mol
◦ +1512 kJ/mol
◦ +690.3 kJ/mol


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Marked as best answer by burton19126 on Feb 15, 2020

brittrenee

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burton19126

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Reply 2 on: Feb 15, 2020
Excellent


Laurenleakan

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Reply 3 on: Yesterday
Great answer, keep it coming :)

 

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