Chemistry & Chemical Reactivity
9th Edition
ISBN: 9781133949640
Author: John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher: Cengage Learning
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Question
Chapter 12.5, Problem 3Q
Interpretation Introduction
Interpretation:
The thickness of a sheet of graphene has to be estimated.
Concept introduction:
The thickness is calculated from the multiplication of diameter by two.
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The radius of a rhodium atom is 134 pm. How many rhodium atoms would have to be laid side by side to span a distance of 2.58 mm?
Polymers are molecules of high molecular mass
formed by joining together large numbers of small
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methods of creating polymers. In addition
polymerization, monomers couple through the
opening of their multiple bonds, as seen in the
formation of polyethylene.(Figure 1) In
condensation polymerization, two monomers join by
the elimination of a small molecule such as water, as
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(Figure 2)
Figure
H
H
Addition Polymerization
H
H
Ethylene
H
H HHH
T T
T
C-C-C-C---
T
HH H H
Polyethylene
1 of 2
Part A
The repeat unit of a polymer is the smallest section of the polymer that includes all of the original
monomers and is identically repeated end to end along the entire polymer chain.
Draw the repeat unit of the polymer that results via a condensation reaction, as shown in Intro figure 2,
between the diacid and the diamine shown.
HO
Terephthalic acid
+
OH
H₂N
NH₂
1,1-Ethanediamine
To indicate that the…
Polymers are molecules of high molecular mass
formed by joining together large numbers of small
molecules, called monomers. There are two general
methods of creating polymers. In addition
polymerization, monomers couple through the
opening of their multiple bonds, as seen in the
formation of polyethylene.(Figure 1) In condensation
polymerization, two monomers join by the
elimination of a small molecule such as water, as seen
in the formation of proteins from amino acids. (Figure
2)
Figure
Condensation Polymerization
HRO
HRO
||
---H-N-C-C-0-H
T
H
T
H
H
< 2 of 2
Amino Acids
HROHRO
| | || TI
-N-C-C-N-C-C--- + H₂O
||
-C-O-H--→
H
Protein
R=H, CH3, or other group
of atoms
Draw the monomer used to make the following polymer via addition polymerization.
H
H H
HH
1 1
T
C=C-C-C C C-C-C-C-C-C---
T
T
I T T
H CH₂ H H H CH3 H H H CH₂ H H
[]
Draw the molecule by placing atoms on the grid and connecting them with bonds.
► View Available Hint(s)
H
8 i
?
Chapter 12 Solutions
Chemistry & Chemical Reactivity
Ch. 12.1 - (a) Determining an Atom Radius from Lattice...Ch. 12.1 - Prob. 1RCCh. 12.1 - Prob. 2RCCh. 12.2 - If an ionic solid has an fcc lattice of anions (X)...Ch. 12.2 - Potassium chloride has the same unit cell as NaCl....Ch. 12.2 - 1. The unit cell of silicon carbide. SiC is...Ch. 12.2 - If one edge of the silicon carbide unit cell is...Ch. 12.2 - Prob. 1QCh. 12.2 - Describe the unit cell of lithium (see Figure).Ch. 12.2 - Prob. 3Q
Ch. 12.2 - Prob. 4QCh. 12.3 - Prob. 1RCCh. 12.3 - Prob. 2RCCh. 12.3 - Prob. 3RCCh. 12.4 - Prob. 1RCCh. 12.5 - Prob. 1QCh. 12.5 - Prob. 2QCh. 12.5 - Prob. 3QCh. 12.5 - 1. Which of the following allotropes of carbon is...Ch. 12.5 - Prob. 2RCCh. 12.6 - Prob. 1RCCh. 12.6 - Suppose you wanted to cool 100. g of water from 20...Ch. 12.7 - Prob. 1RCCh. 12.7 - How many tin atoms are contained in the tetragonal...Ch. 12.7 - Prob. 2QCh. 12.7 - Prob. 3QCh. 12.7 - Prob. 4QCh. 12 - Outline a two-dimensional unit cell for the...Ch. 12 - Outline a two-dimensional unit cell for the...Ch. 12 - Prob. 3PSCh. 12 - Rutile, TiO2, crystallizes in a structure...Ch. 12 - Cuprite is a semiconductor. Oxide ions are at the...Ch. 12 - The mineral fluorite, which is composed of calcium...Ch. 12 - Calcium metal crystallizes in a face-centered...Ch. 12 - The density of copper metal is 8.95 g/cm3. If the...Ch. 12 - Potassium iodide has a face-centered cubic unit...Ch. 12 - A unit cell of cesium chloride is illustrated in...Ch. 12 - Predict the trend in lattice energy, from least...Ch. 12 - Prob. 12PSCh. 12 - To melt an ionic solid, energy must be supplied to...Ch. 12 - Which compound in each of the following pairs...Ch. 12 - Prob. 15PSCh. 12 - Prob. 16PSCh. 12 - Considering only the molecular orbitals formed by...Ch. 12 - Prob. 18PSCh. 12 - Prob. 19PSCh. 12 - Prob. 20PSCh. 12 - Prob. 21PSCh. 12 - Prob. 22PSCh. 12 - Prob. 23PSCh. 12 - Prob. 24PSCh. 12 - A diamond unit cell is shown here. Unit cell of...Ch. 12 - The structure of graphite is given in Figure...Ch. 12 - We have identified six types of solids (metallic,...Ch. 12 - Prob. 28PSCh. 12 - Classify each of the following materials as...Ch. 12 - Prob. 30PSCh. 12 - Benzene, C6H6, is an organic liquid that freezes...Ch. 12 - The specific heat capacity of silver is 0.235 J/g ...Ch. 12 - Prob. 33PSCh. 12 - Prob. 34PSCh. 12 - Prob. 35PSCh. 12 - If your air conditioner is more than several years...Ch. 12 - Sketch a phase diagram for O2 from the following...Ch. 12 - Tungsten crystallizes in the unit cell shown here....Ch. 12 - Silver crystallizes in a face-centered cubic unit...Ch. 12 - The unit cell shown here is for calcium carbide....Ch. 12 - The very dense metal iridium has a face-centered...Ch. 12 - Vanadium metal has a density of 6.11 g/cm3....Ch. 12 - Prob. 43GQCh. 12 - Prob. 44GQCh. 12 - Prob. 45GQCh. 12 - Consider the three types of cubic units cells. (a)...Ch. 12 - The solid-state structure of silicon is shown...Ch. 12 - The solid-state structure of silicon carbide is...Ch. 12 - Spinels are solids with the general formula AB2O4...Ch. 12 - Using the thermochemical data below and an...Ch. 12 - Prob. 51GQCh. 12 - Prob. 52GQCh. 12 - Prob. 53GQCh. 12 - Prob. 54GQCh. 12 - Prob. 55GQCh. 12 - Prob. 56GQCh. 12 - Like ZnS, lead(II) sulfide, PbS (commonly called...Ch. 12 - CaTiO3, a perovskite, has the structure below. (a)...Ch. 12 - Potassium bromide has the same lattice structure...Ch. 12 - Calculate the lattice energy of CaCl2 using a...Ch. 12 - Why is it not possible for a salt with the formula...Ch. 12 - Prob. 63SCQCh. 12 - Prob. 64SCQCh. 12 - Prob. 65SCQCh. 12 - Phase diagrams for materials that have allotropes...
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