Chemistry: An Atoms First Approach
2nd Edition
ISBN: 9781305079243
Author: Steven S. Zumdahl, Susan A. Zumdahl
Publisher: Cengage Learning
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Textbook Question
Chapter 3, Problem 63E
Consider the following energy changes:
∆E(kJ/mol) | |
Mg(g)→ Mg+(g) + e− | 735 |
Mg+ (g) → Mg2+(g) + e− | 1445 |
O(g) + e− → + O− (g) | −141 |
O−(g) + e− → O2− (g) | 878 |
Magnesium oxide exists as Mg2+O2− and not as Mg+O−. Explain.
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Use the data in the table below to calculate the lattice energy of KCI.
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1. Below is a list of enthalpy changes for the Born-Haber cycle for the formation of solid LiF from Li(s) and F(g). Use these data to determine the lattice energy for the formation LiF(s). Li(s) → Li(g) ΔH1 = +162 kJ/mol Li(g) → Li+(g) + e- ΔH2 = +520.2 kJ/molF2(g) → 2F(g) ΔH3 = 154 kJ/mol F(g) + e- → F-(g) ΔH4 = -328 kJ/molLi(s) + 1/2F2(g) → LiF(s) ΔHf = -612 kJ/mol
Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer.
a. 1371 kJ/mol
b. -1371 kJ/mol
c. 1043 kJ/mol
d. -1043 kJ/mol
Chapter 3 Solutions
Chemistry: An Atoms First Approach
Ch. 3 - Distinguish between the terms electronegativity...Ch. 3 - Prob. 2RQCh. 3 - When an element forms an anion, what happens to...Ch. 3 - Define the term lattice energy. Why,...Ch. 3 - Explain how bond energies can be used to estimate...Ch. 3 - Prob. 6RQCh. 3 - Prob. 7RQCh. 3 - Explain the terms resonance and delocalized...Ch. 3 - Define formal charge and explain how to calculate...Ch. 3 - The compounds AlCl3, CrCl3, and ICl3 have similar...
Ch. 3 - How would you name HBrO4, KIO3, NaBrO2, and HIO?...Ch. 3 - Explain the electronegativity trends across a row...Ch. 3 - The ionic compound AB is formed. The charges on...Ch. 3 - Prob. 3ALQCh. 3 - The bond energy for a CH bond is about 413 kJ/mol...Ch. 3 - Prob. 5ALQCh. 3 - Which has the greater bond lengths: NO2 or NO3?...Ch. 3 - Prob. 7ALQCh. 3 - The second electron affinity values for both...Ch. 3 - What is meant by a chemical bond? Why do atoms...Ch. 3 - Why are some bonds ionic and some covalent?Ch. 3 - Prob. 11ALQCh. 3 - Prob. 12ALQCh. 3 - Prob. 13ALQCh. 3 - Why do we call Ba(NO3)2 barium nitrate, but we...Ch. 3 - Prob. 15ALQCh. 3 - Prob. 16ALQCh. 3 - Compare and contrast the bonding found in the...Ch. 3 - Describe the type of bonding that exists in the...Ch. 3 - Some of the important properties of ionic...Ch. 3 - Prob. 21QCh. 3 - Distinguish between the following terms. a....Ch. 3 - What is the electronegativity trend? 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