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Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074

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BuyFindarrow_forward

Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074
Textbook Problem

Potassium chloride has the same unit cell as NaCl. Using the ion sizes in Figure 7.11, calculate the density of KCl.

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FIGURE 7.11 Relative sizes of some common ions. Rodii are given in picometers (1 pm 1 × 10‒12 m). (Data taken from J. Emsley, The Elements, Clarendon Press, Oxford, 1998, 3rd edition.)

Interpretation Introduction

Interpretation:

The density of potassium chloride has to be calculated.

Concept introduction:

The volume of the atom is given below,

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The density of the unit cell is calculated as follows,

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Explanation

One unit cell contains four potassium atom and four chlorine atom.

  

  

  

  

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