Student Solutions Manual for Ebbing/Gammon's General Chemistry
11th Edition
ISBN: 9781305886780
Author: Darrell Ebbing; Steven D. Gammon
Publisher: Cengage Learning US
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Chapter 8, Problem 8.23QP
Interpretation Introduction
Interpretation:
The names and formulas of two oxides of Carbon has to be written
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Students have asked these similar questions
On the next page is an LC separation of the parabens found in baby wash. Parabens are
suspected in a link to breast cancer therefore an accurate way to quantitate them is desired.
a. In the chromatogram, estimate k' for ethyl paraben. Clearly indicate what values you used for
all the terms in your calculation.
b. Is this a "good" value for a capacity factor? Explain.
c. What is the resolution between n-Propyl paraben and n-Butyl paraben? Again, indicate clearly
what values you used in your calculation.
MAU
| Methyl paraben
40
20
0
-2
Ethyl paraben n-Propyl paraben
n-Butyl paraben
App ID 22925
6
8
min
d. In Figure 4, each stationary phase shows some negative correlation between plate count
and retention factor. In other words, as k' increases, N decreases. Explain this relationship
between k' and N.
Plate Count (N)
4000
3500
2500
2000
1500
1000
Figure 4. Column efficiency (N) vs retention factor (k') for 22
nonionizable solutes on FMS (red), PGC (black), and COZ (green). 3000
Eluent compositions (acetonitrile/water, A/W) were adjusted to obtain
k' less than 15, which was achieved for most solutes as follows: FMS
(30/70 A/W), PGC (60/40), COZ (80/20). Slightly different
compositions were used for the most highly retained solutes. All
columns were 50 mm × 4.6 mm id and packed with 5 um particles,
except for COZ, which was packed with 3 um particles. All other
chromatographic conditions were constant: column length 5 cm,
column j.§. 4.6 mm, flow rate 2 mL/min, column temperature 40 °C,
and injection volume 0.5 μL
Log(k'x/K'ethylbenzene)
FMS
1.5
1.0
0.5
0.0
ཐྭ ཋ ཤྩ བྷྲ ;
500
0
5
10…
f. Predict how the van Deemter curve in Figure 7
would change if the temperature were raised
from 40 °C to 55 °C.
Figure 7. van Desmter curves in reduced coordinates for four
nitroalkane homologues (nitropropane, black; nitrobutane, red;
nitropentane, blue; and nitrohexane, green) separated on the FMS
phase. Chromatographic conditions: column dimensions 50 mm × 4.6
mm id, eluent 30/70 ACN/water, flow rates 0.2-5.0 mL/min, injection
volume 0.5 and column temperature 40 °C. No corrections to the
plate heights have been made to account for extracolumn dispersion.
Reduced Plate Height (h)
°
20
40
60
Reduced Velocity (v)
8. (2) A water sample is analyzed for traces of benzene using headspace analysis. The sample and
standard are spiked with a fixed amount of toluene as an internal standard. The following data are
obtained:
Ppb benzene
Peak area benzene
Peak area toluene
10.0
252
376
Sample
533
368
What is the concentration of benzene in the sample?
Chapter 8 Solutions
Student Solutions Manual for Ebbing/Gammon's General Chemistry
Ch. 8.1 - Look at the following orbital diagrams and...Ch. 8.2 - Imagine a world in which the Pauli principle is No...Ch. 8.3 - Use the building-up principle to obtain the...Ch. 8.3 - Prob. 8.3ECh. 8.3 - Prob. 8.4ECh. 8.3 - Prob. 8.2CCCh. 8.4 - Write an orbital diagram for the ground state of...Ch. 8.6 - Prob. 8.6ECh. 8.6 - The first ionization energy of the chlorine atom...Ch. 8.6 - Prob. 8.8E
Ch. 8.6 - Prob. 8.3CCCh. 8.7 - Prob. 8.4CCCh. 8 - Describe the experiment of Stern and Gerlach. How...Ch. 8 - Prob. 8.2QPCh. 8 - Prob. 8.3QPCh. 8 - What is the maximum number of electrons that can...Ch. 8 - List the orbitals in order of increasing orbital...Ch. 8 - Prob. 8.6QPCh. 8 - Prob. 8.7QPCh. 8 - Prob. 8.8QPCh. 8 - Prob. 8.9QPCh. 8 - Prob. 8.10QPCh. 8 - Describe the major trends that emerge when atomic...Ch. 8 - Prob. 8.12QPCh. 8 - What main group in the periodic table has elements...Ch. 8 - Prob. 8.14QPCh. 8 - Prob. 8.15QPCh. 8 - Prob. 8.16QPCh. 8 - What is the name of the alkali metal atom with...Ch. 8 - What would you predict for the atomic number of...Ch. 8 - Prob. 8.19QPCh. 8 - Prob. 8.20QPCh. 8 - Prob. 8.21QPCh. 8 - Prob. 8.22QPCh. 8 - Prob. 8.23QPCh. 8 - Prob. 8.24QPCh. 8 - Prob. 8.25QPCh. 8 - Which of the following atoms, designated by their...Ch. 8 - Prob. 8.27QPCh. 8 - Prob. 8.28QPCh. 8 - Periodic Properties I A hypothetical element, X,...Ch. 8 - Prob. 8.30QPCh. 8 - Prob. 8.31QPCh. 8 - Prob. 8.32QPCh. 8 - Prob. 8.33QPCh. 8 - Prob. 8.34QPCh. 8 - Prob. 8.35QPCh. 8 - Prob. 8.36QPCh. 8 - Two elements are in the same group, one following...Ch. 8 - Prob. 8.38QPCh. 8 - Prob. 8.39QPCh. 8 - Prob. 8.40QPCh. 8 - Which of the following orbital diagrams are...Ch. 8 - Which of the following orbital diagrams are...Ch. 8 - Which of the following electron configurations are...Ch. 8 - Choose the electron configurations that are...Ch. 8 - Write all of the possible orbital diagrams for the...Ch. 8 - Prob. 8.46QPCh. 8 - Prob. 8.47QPCh. 8 - Use the building-up principle to obtain the...Ch. 8 - Use the building-up principle to obtain the...Ch. 8 - Give the electron configuration of the ground...Ch. 8 - Barium is a Group 2A element in Period 6. Deduce...Ch. 8 - Bismuth is a Group 5A element in Period 6. Write...Ch. 8 - Tungsten is a Group 6B element in Period 6. What...Ch. 8 - Manganese is a Group 7B element in Period 4. What...Ch. 8 - Thallium has the ground-state configuration...Ch. 8 - The configuration for the ground state of iridium...Ch. 8 - Write the orbital diagram for the ground state of...Ch. 8 - Prob. 8.58QPCh. 8 - Write an orbital diagram for the ground state of...Ch. 8 - Write an orbital diagram for the ground state of...Ch. 8 - Order the following elements by increasing atomic...Ch. 8 - Using periodic trends, arrange the following...Ch. 8 - Using periodic trends, arrange the following...Ch. 8 - Arrange the following elements in order of...Ch. 8 - From what you know in a general way about electron...Ch. 8 - Prob. 8.66QPCh. 8 - If potassium chlorate has the formula KClO3, what...Ch. 8 - Prob. 8.68QPCh. 8 - Write the complete ground-state electron...Ch. 8 - Prob. 8.70QPCh. 8 - Obtain the valence-shell configuration of the...Ch. 8 - Prob. 8.72QPCh. 8 - Write the orbital diagram for the ground state of...Ch. 8 - Prob. 8.74QPCh. 8 - Prob. 8.75QPCh. 8 - Prob. 8.76QPCh. 8 - From Figure 8.18, predict the first ionization...Ch. 8 - Prob. 8.78QPCh. 8 - Prob. 8.79QPCh. 8 - Prob. 8.80QPCh. 8 - Prob. 8.81QPCh. 8 - Match each element on the right with a set of...Ch. 8 - Find the electron configuration of the element...Ch. 8 - Find the electron configuration of the element...Ch. 8 - Prob. 8.85QPCh. 8 - Prob. 8.86QPCh. 8 - Prob. 8.87QPCh. 8 - Prob. 8.88QPCh. 8 - Prob. 8.89QPCh. 8 - Prob. 8.90QPCh. 8 - The following are orbital diagrams for presumed...Ch. 8 - Prob. 8.92QPCh. 8 - A metallic element, M, reacts vigorously with...Ch. 8 - A nonmetallic element, R, burns brightly in air to...Ch. 8 - The ground-state electron configuration of an atom...Ch. 8 - Prob. 8.96QPCh. 8 - Prob. 8.97QPCh. 8 - Prob. 8.98QPCh. 8 - Prob. 8.99QPCh. 8 - A neutral atom has the electron configuration...Ch. 8 - Prob. 8.101QPCh. 8 - A metallic element reacts vigorously with water,...Ch. 8 - Prob. 8.103QPCh. 8 - Prob. 8.104QPCh. 8 - Prob. 8.105QPCh. 8 - Prob. 8.106QPCh. 8 - An atom easily loses two electrons to form the ion...Ch. 8 - Prob. 8.108QPCh. 8 - Prob. 8.109QPCh. 8 - The electron affinity of the lutetium atom...Ch. 8 - Prob. 8.111QPCh. 8 - Prob. 8.112QPCh. 8 - Prob. 8.113QPCh. 8 - Prob. 8.114QPCh. 8 - How much energy would be required to ionize 5.00...Ch. 8 - Prob. 8.116QPCh. 8 - Prob. 8.117QPCh. 8 - Prob. 8.118QPCh. 8 - The lattice energy of an ionic solid such as NaCl...Ch. 8 - Calculate H for the following process:...
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