
Chemistry For Changing Times (14th Edition)
14th Edition
ISBN: 9780321972026
Author: John W. Hill, Terry W. McCreary
Publisher: PEARSON
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Question
Chapter 4, Problem 13P
a.
Interpretation Introduction
Interpretation:
The Lewis formula for Sodium iodide should be written.
Concept introduction:
- Valence electron: The electrons which are present in the outer most energy level is known as the valence electron. This can be calculated by the group number of the element. Generally, the group number is same as the valence electrons of any elements.
- Lewis electron dot symbol is a structure of a molecule that shows the bonding between atoms as well as lone pairs of electrons of atoms also.
- Some common rule for writing Lewis formulas are as follows:
- Hydrogen atom always form a single bond; thus, it is always at the end of a sequence of the atom
- Oxygen forms two bonds.
- Nitrogen forms triple bonds.
- Carbon forms four bonds.
- For polyatomic molecules and ions, a central atom surrounded by other atoms
b.
Interpretation Introduction
Interpretation:
The Lewis formula for potassium sulfide should be written.
Concept introduction:
- Valence electron: The electrons which are present in the outer most energy level are known as valence electron. This can be calculated by the group number of the element. Generally, the group number is same as the valence electrons of any elements.
- Lewis electron dot symbol is a structure of a molecule that shows the bonding between atoms as well as lone pairs of electrons of atoms also.
- Some common rule for writing Lewis formulas are as follows:
- Hydrogen atom always form a single bond, thus it is always at the end of a sequence of the atom
- Oxygen forms two bonds.
- Nitrogen forms triple bonds.
- Carbon forms four bonds.
- For polyatomic molecules and ions, a central atom surrounded by other atoms
c.
Interpretation Introduction
Interpretation:
The Lewis formula for calcium chloride should be written.
Concept introduction:
- Valence electron: The electrons which are present in the outer most energy level are known as valence electron. This can be calculated by the group number of the element. Generally, the group number is same as the valence electrons of any elements.
- Lewis electron dot symbol is a structure of a molecule that shows the bonding between atoms as well as lone pairs of electrons of atoms also.
- Some common rule for writing Lewis formulas are as follows:
- Hydrogen atom always form a single bond, thus it is always at the end of a sequence of the atom
- Oxygen forms two bonds.
- Nitrogen forms triple bonds.
- Carbon forms four bonds.
- For polyatomic molecules and ions, a central atom surrounded by other atoms
d.
Interpretation Introduction
Interpretation:
The Lewis formula for aluminum fluoride should be explained.
Concept introduction:
- Valence electron: The electrons which are present in the outer most energy level are known as valence electron. This can be calculated by the group number of the element. Generally, the group number is same as the valence electrons of any elements.
- Lewis electron dot symbol is a structure of a molecule that shows the bonding between atoms as well as lone pairs of electrons of atoms also.
- Some common rule for writing Lewis formulas are as follows:
- Hydrogen atom always form a single bond, thus it is always at the end of a sequence of the atom
- Oxygen forms two bonds.
- Nitrogen forms triple bonds.
- Carbon forms four bonds.
- For polyatomic molecules and ions, a central atom surrounded by other atoms
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34. Figure 3 shows Van Deemter plots for a solute molecule using different column inner diameters (i.d.).
A) Predict whether decreasing the column inner diameters increase or decrease bandwidth.
B) Predict which van Deemter equation coefficient (A, B, or C) has the greatest effect on increasing or
decreasing bandwidth as a function of i.d. and justify your answer.
Figure 3 Van Deemter plots for hydroquinone using different column inner diameters (i.d. in μm). The data was
obtained from liquid chromatography experiments using fused-silica capillary columns packed with 1.0-μm particles.
35
20
H(um)
큰 20
15
90
0+
1500
100
75
550
01
02
594
05
μ(cm/sec)
30
15
10
elow are
experimentally determined van Deemter plots of column efficiency, H, vs. flow rate. H is a
quantitative measurement of band broadening. The left plot is for a liquid chromatography application and the
night is for gas chromatography. Compare and contrast these two plots in terms of the three band broadening
mechanisms presented in this activity. How are they similar? How do they differ? Justify your answers.?
0.4
H (mm)
0.2
0.1-
0.3-
0
0.5
H (mm)
8.0
7.0
6.0
5.0
4.0-
3.0
T
+++
1.0
1.5
0
2.0
4.0
Flow Rate, u (cm/s)
6.0
8.0
Flow Rate, u (cm/s)
Predict the products of this organic reaction:
+
H
ZH
NaBH3CN
H+
n.
?
Click and drag to start drawing a
structure.
X
Chapter 4 Solutions
Chemistry For Changing Times (14th Edition)
Ch. 4 - Prob. 1RQCh. 4 - Prob. 2RQCh. 4 - What are the structural differences among chlorine...Ch. 4 - Prob. 4RQCh. 4 - What are the charges on simple ions formed from...Ch. 4 - Prob. 6RQCh. 4 - In what group of the periodic table would elements...Ch. 4 - Prob. 8RQCh. 4 - Prob. 9RQCh. 4 - Prob. 10P
Ch. 4 - 11. Write Lewis symbols for each of the following...Ch. 4 - Write the Lewis symbol for each species in the...Ch. 4 - Prob. 13PCh. 4 - Prob. 14PCh. 4 - Prob. 15PCh. 4 - Prob. 16PCh. 4 - Prob. 17PCh. 4 - Prob. 18PCh. 4 - Prob. 19PCh. 4 - Prob. 20PCh. 4 - Prob. 21PCh. 4 - Prob. 22PCh. 4 - Prob. 23PCh. 4 - Prob. 24PCh. 4 - There are two common binary ionic compounds formed...Ch. 4 - Prob. 26PCh. 4 - Prob. 27PCh. 4 - Prob. 28PCh. 4 - Prob. 29PCh. 4 - Prob. 30PCh. 4 - Prob. 31PCh. 4 - Prob. 32PCh. 4 - Use Lewis dot symbols to show the sharing of...Ch. 4 - Prob. 34PCh. 4 - Prob. 35PCh. 4 - Prob. 36PCh. 4 - Prob. 37PCh. 4 - Prob. 38PCh. 4 - 39. Supply a formula for the name or a name for...Ch. 4 - Prob. 40PCh. 4 - Prob. 41PCh. 4 - Prob. 42PCh. 4 - Prob. 43PCh. 4 - Prob. 44PCh. 4 - Prob. 45PCh. 4 - Prob. 46PCh. 4 - Prob. 47PCh. 4 - Prob. 48PCh. 4 - Prob. 49PCh. 4 - Prob. 50PCh. 4 - Prob. 51PCh. 4 - Prob. 52PCh. 4 - Classify the bonds in the following as ionic or...Ch. 4 - Prob. 54PCh. 4 - Prob. 55PCh. 4 - Prob. 56PCh. 4 - Prob. 57PCh. 4 - Prob. 58PCh. 4 - Prob. 59PCh. 4 - Prob. 60PCh. 4 - Prob. 61PCh. 4 - Prob. 62PCh. 4 - Prob. 63PCh. 4 - Prob. 64PCh. 4 - Prob. 65PCh. 4 - Prob. 66PCh. 4 - Prob. 67PCh. 4 - Prob. 68PCh. 4 - Prob. 69PCh. 4 - Prob. 70PCh. 4 - Prob. 71PCh. 4 - Prob. 72APCh. 4 - Prob. 73APCh. 4 - Prob. 74APCh. 4 - Prob. 75APCh. 4 - Prob. 76APCh. 4 - Prob. 77APCh. 4 - Prob. 78APCh. 4 - Prob. 79APCh. 4 - Prob. 80APCh. 4 - Prob. 81APCh. 4 - Prob. 82APCh. 4 - Prob. 83APCh. 4 - Prob. 84APCh. 4 - Prob. 85APCh. 4 - Prob. 86APCh. 4 - Prob. 87APCh. 4 - Prob. 88APCh. 4 - Prob. 89APCh. 4 - Prob. 90APCh. 4 - Prob. 91APCh. 4 - Prob. 92APCh. 4 - Prob. 93APCh. 4 - Prob. 4.1CTECh. 4 - Prob. 4.2CTECh. 4 - 4.3 Sodium chloride (NaCI) is a metal-nonmetal...Ch. 4 - Prob. 4.4CTECh. 4 - Prob. 4.5CTECh. 4 - Prob. 4.6CTECh. 4 - Prob. 4.7CTECh. 4 - Prob. 4.8CTECh. 4 - Prob. 4.9CTECh. 4 - Prob. 4.10CTECh. 4 - Prob. 1CGPCh. 4 - Prob. 2CGPCh. 4 - Prepare a PowerPoint, poster, or other...Ch. 4 - Prob. 4CGPCh. 4 - Prob. 5CGPCh. 4 - Prob. 1CHQCh. 4 - Prob. 2CHQCh. 4 - Prob. 3CHQ
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