General Chemistry - Standalone book (MindTap Course List)
11th Edition
ISBN: 9781305580343
Author: Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher: Cengage Learning
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Chapter 11, Problem 11.93QP
Interpretation Introduction
Interpretation:
The volume of each atom and atomic radius (r) has to be calculated.
Concept introduction:
- Crystal structure: Crystal structure is arrangement of group of atoms or ions or molecule in the crystalline material.
- Unit cell: A simplest repeating unit in the crystal structure. Every unit cell is described in terms of lattice point. Example for unit cell: cubic, monoclinic, tetragonal, orthorhombic, rhombohedral, hexagonal and triclinic.
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Using the following thermodynamic data, calculate the lattice enthalpy of lithium
oxide:
Li(g) → Li*(g) + e* AH₁= 540 kJ /mol
Li(s) → Li(g) AHS= +146 kJ/mol
O₂(s) → 20(g) AH₂= +488 kJ /mol
O(g) + 1e →→ O(g) AHA1= -142 kJ /mol
O` (g) + 1e¯ → 0²-(g) AHÃ₂= +844 kJ /mol
2Li(s) + 1/2O₂(g) → Li₂O(s) AH₁= -586 kJ /mol
NOTE: Give your answer in kJ mol-¹
On the basis of ionic charge and ionic radii given in Table 1, predict crystal structures for the
following materials:
a. Cao (b) MnS (c) KBr (d) CsBr
b. Justify your selections.
Table 1: Ionic Radii for Several Cations and Anions
Ionic
Radius (nm)
Jonic
Radias (am)
Cation
Anion
AP
0.053
Br
0.196
Bu
0.136
0.181
0.100
0.133
Cs'
0.170
0.220
Fel
Fe
K'
0.077
0.140
0.069
0.184
0.138
Mg
Mn.
0.072
0.067
Na
0.102
0.069
0.040
0.061
From the data in following table, compute the theoretical density of CaF2, which has the fluorite
structure, the atomic weight of Ca²+ and F are 40.08 g/mol and 19.00 g/mol, respectively.
Cation
A1³+
Ba²+
Ca²+
Cs+
Fe²+
Fe³+
Ionic
Radius (nm)
0.053
0.136
0.100
0.170
0.077
0.069
Anion
Br
CI
F
I
0²-
82-
Ionic
Radius (nm)
0.196
0.181
0.133
0.220
0.140
0.184
O Ca2+
Chapter 11 Solutions
General Chemistry - Standalone book (MindTap Course List)
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Arrange the following substances in order of...Ch. 11 - Methane, CH4, reacts with chlorine, Cl2, to...Ch. 11 - The halogens form a series of compounds with each...Ch. 11 - Prob. 11.69QPCh. 11 - Prob. 11.70QPCh. 11 - List the following substances in order of...Ch. 11 - Arrange the following compounds in order of...Ch. 11 - Classify each of the following by the type of...Ch. 11 - Classify each of the following by the type of...Ch. 11 - Classify each of the following solid elements as...Ch. 11 - Which of the following do you expect to be...Ch. 11 - Prob. 11.77QPCh. 11 - Arrange the following substances in order of...Ch. 11 - Prob. 11.79QPCh. 11 - On the basis of the description given, classify...Ch. 11 - Prob. 11.81QPCh. 11 - Associate each of the solids BN, P4S3, Pb, and...Ch. 11 - Prob. 11.83QPCh. 11 - How many atoms are there in a body-centered cubic...Ch. 11 - Metallic iron has a body-centered cubic lattice...Ch. 11 - Nickel has a face-centered unit cell with all...Ch. 11 - Copper metal has a face-centered cubic structure...Ch. 11 - 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Prob. 11.143QPCh. 11 - Strontium crystallizes as a face-centered cubic...Ch. 11 - Prob. 11.145QPCh. 11 - Prob. 11.146QPCh. 11 - Prob. 11.147QPCh. 11 - Prob. 11.148QPCh. 11 - Prob. 11.149QPCh. 11 - Prob. 11.150QPCh. 11 - Prob. 11.151QPCh. 11 - Prob. 11.152QPCh. 11 - How much heat must be added to 28.0 g of solid...Ch. 11 - Prob. 11.154QPCh. 11 - Prob. 11.155QPCh. 11 - Prob. 11.156QPCh. 11 - Nanotechnology, or technology utilizing 1100 nm...
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