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Ionic Compound Crystal Geometry and Coordination Number Quiz

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Ionic Compound Crystal Geometry and Coordination Number Quiz

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Questions and Answers

What is the primary purpose of the Born-Haber cycle?

To calculate the heat of formation of an ionic compound (correct)

To determine the geometry of ionic compounds

To analyze the covalent bonding in molecules

To predict the melting point of ionic solids

In the Born-Haber cycle for the formation of NaCl, what is the value of the heat of formation ($H_f$) in kJ/mol?

+788

-411 (correct)

+411

-788

Which of the following statements about the Born-Haber cycle is correct?

It is used to calculate the dissociation energy of ionic compounds

It includes the ionization energy term for both cations and anions

It is used to determine the coordination number of ionic compounds

The lattice energy term is added in the cycle (correct)

For the formation of $MgCl_2$, how many ionization energy terms are included in the Born-Haber cycle?

2 Signup and view all the answers

Which of the following factors would increase the lattice energy of an ionic compound?

Higher charge on the anion Signup and view all the answers

What is the coordination number of a cation in a crystal structure where each cation is surrounded by six anions?

6 Signup and view all the answers

Which of the following statements about ionic compounds is correct?

They have a regular, repeating arrangement of ions Signup and view all the answers

If the lattice energy of an ionic compound increases, what would be the effect on its melting point?

The melting point would increase Signup and view all the answers

In the Born-Haber cycle for the formation of $Al_2O_3$, how many electron affinity terms are included?

3 Signup and view all the answers

Which of the following factors would decrease the lattice energy of an ionic compound?

Larger anion size Signup and view all the answers