Chemistry In Focus
7th Edition
ISBN: 9781337399692
Author: Tro, Nivaldo J.
Publisher: Cengage Learning,
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Chapter 4, Problem 3E
Interpretation Introduction
Interpretation:
The term “Chemical formula” is to be defined.
Concept Introduction:
A compound is represented by a chemical formula, which gives information about the elements present in that compound and the relative number of atoms contained in that compound.
In a compound, the atoms are contained in a fixed proportion, and to represent those proportions, a chemical formula is used.
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Can the target compound at right be efficiently synthesized in good yield from the unsubstituted benzene at left?
?
starting
material
target
If so, draw a synthesis below. If no synthesis using reagents ALEKS recognizes is possible, check the box under the drawing area.
Be sure you follow the standard ALEKS rules for submitting syntheses.
+ More...
Note for advanced students: you may assume that you are using a large excess of benzene as your starting material.
C
:0
T
Add/Remove step
G
The following equations represent the formation of compound MX. What is the AH for the
electron affinity of X (g)?
X₂ (g) → 2X (g)
M (s) → M (g)
M (g)
M (g) + e-
AH = 60 kJ/mol
AH = 22 kJ/mol
X (g) + e-X (g)
M* (g) +X (g) → MX (s)
AH = 118 kJ/mol
AH = ?
AH = -190 kJ/mol
AH = -100 kJ/mol
a)
-80 kJ
b)
-30 kJ
c)
-20 kJ
d)
20 kJ
e)
156 kJ
A covalent bond is the result of the
a)
b)
c)
d)
e)
overlap of two half-filled s orbitals
overlap of a half-filled s orbital and a half-filled p orbital
overlap of two half-filled p orbitals along their axes
parallel overlap of two half-filled parallel p orbitals
all of the above
Chapter 4 Solutions
Chemistry In Focus
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