Chapter 17.5, Problem 17.14.1PE

(a)

Interpretation Introduction

To determine: The number of ${\text{O}}^{2-}$ that are in contact with each ${\text{Ca}}^{2+}$ ion in the crystal structure of $\text{CaO}$ that crystallizes with the same structure as sodium chloride.

(b)

Interpretation Introduction

To determine: If the energy consumed or released if a crystal of $\text{CaO}$ was converted to a collection of widely separated $\text{Ca}-\text{O}$ ion pairs.

(c)

Interpretation Introduction

To determine: The potential energy of a single $\text{Ca}-\text{O}$ ion pair that is just touching.

(d)

Interpretation Introduction

To determine: The energy of one mole of $\text{Ca}-\text{O}$ ion pairs and its comparison with the lattice energy of $\text{CaO}$ .

(e)

Interpretation Introduction

To determine: The factor that accounts for most of the discrepancy between the energies in part (d).