Chemistry in Context
8th Edition
ISBN: 9780073522975
Author: American Chemical Society
Publisher: McGraw-Hill Education
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Chapter 2, Problem 14Q
Assuming that the octet rule applies, draw the Lewis structure for each of these molecules.
- a. CCl4 (carbon tetrachloride, a substance formerly used as a cleaning agent)
- b. H2O2 (hydrogen peroxide, a mild disinfectant; the atoms are bonded in this order: H─O─O─H)
- c. H2S (hydrogen sulfide, a gas with the unpleasant odor of rotten eggs)
- d. N2 (nitrogen gas, the major component of the atmosphere)
- e. HCN (hydrogen cyanide, a molecule found in space and a poisonous gas)
- f. N2O (nitrous oxide, “laughing gas”; the atoms are bonded N─N─O)
- g. CS2 (carbon disulfide, used to kill rodents; the atoms are bonded S─C─S)
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Students have asked these similar questions
The table below includes the bond enthalpy (the energy required to separate the diatomic molecule into its atoms) and the bond length for each diatomic molecule.
Diatomic Molecule
Bond Enthalpy (kJ/mol)
Bond Length (pm)
Cl2
243
199
O2
498
121
N2
945
110
Identify the observed trend between bond enthalpy and number of shared electrons: as the number of electrons shared between two atoms increases, the bond enthalpy ( increases / decreases / remains unchanged ).
Identify the observed trend between bond length and number of shared electrons: as the number of electrons shared between two atoms increases, the bond length ( increases / decreases / remains unchanged ).
4. Ortho-Dichlorobenzene, C6H4Cl2, is obtained when two of the adjacent hydrogen
atoms in benzene are replaced with Cl atoms. A skeleton of the molecule is shown
here.
a.
Complete a Lewis structure for the molecule using bonds and electron
pairs as needed.
b.
Are there any resonance structures for the molecule? If so, sketch them.
c.
Are the resonance structures in (a) and (b) equivalent to one another as
they are in benzene?
H
H-C
H
C-H
Explain why CH4 is one of the most common molecules found in nature. Are the bonds between the atoms ionic or covalent? What is the difference between an ionic bond and a covalent bond?
Chapter 2 Solutions
Chemistry in Context
Ch. 2.1 - Prob. 2.3CTCh. 2.6 - Prob. 2.15CTCh. 2.7 - Prob. 2.17CTCh. 2.7 - Prob. 2.19SCCh. 2.7 - The indoor tanning industry runs a public...Ch. 2.7 - Prob. 2.21CTCh. 2.8 - Prob. 2.22CTCh. 2.8 - Prob. 2.23YTCh. 2.11 - Prob. 2.27CTCh. 2.13 - Prob. 2.30CT
Ch. 2.13 - Prob. 2.32CTCh. 2 - How does ozone differ from oxygen in its chemical...Ch. 2 - Prob. 2QCh. 2 - Prob. 3QCh. 2 - Prob. 4QCh. 2 - Prob. 5QCh. 2 - Prob. 6QCh. 2 - a. What is a Dobson unit? b. Does a reading of 320...Ch. 2 - Using the periodic table as a guide, specify the...Ch. 2 - Consider this representation of a periodic table....Ch. 2 - Give the name and symbol for the element with this...Ch. 2 - Give the number of protons, neutrons, and...Ch. 2 - Give the symbol showing the atomic number and the...Ch. 2 - Prob. 13QCh. 2 - Assuming that the octet rule applies, draw the...Ch. 2 - Prob. 15QCh. 2 - Consider these two waves representing different...Ch. 2 - Prob. 17QCh. 2 - Prob. 18QCh. 2 - Arrange these types of radiation in order of...Ch. 2 - The microwaves in home microwave ovens have a...Ch. 2 - Ultraviolet radiation is categorized as UVA, UVB,...Ch. 2 - Prob. 22QCh. 2 - Prob. 23QCh. 2 - Prob. 24QCh. 2 - Prob. 25QCh. 2 - The following free radicals all play a role in...Ch. 2 - a. How were the original measurements of increases...Ch. 2 - Prob. 28QCh. 2 - The EPA has used the slogan Ozone: Good Up High,...Ch. 2 - Nobel Laureate F. Sherwood Rowland referred to the...Ch. 2 - Prob. 31QCh. 2 - Prob. 32QCh. 2 - Prob. 33QCh. 2 - Prob. 34QCh. 2 - Prob. 35QCh. 2 - Prob. 36QCh. 2 - The average length of an OO single bond is 132 pm....Ch. 2 - Prob. 38QCh. 2 - Prob. 39QCh. 2 - Prob. 40QCh. 2 - All the reports of the damage caused by UV...Ch. 2 - Prob. 42QCh. 2 - Prob. 43QCh. 2 - Prob. 44QCh. 2 - Development of the stratospheric ozone hole has...Ch. 2 - Prob. 46QCh. 2 - One mechanism that helps break down ozone in the...Ch. 2 - Polar stratospheric clouds (PSCs) play an...Ch. 2 - Prob. 49QCh. 2 - Prob. 50QCh. 2 - Resonance structures can be used to explain the...Ch. 2 - Prob. 52QCh. 2 - Prob. 53QCh. 2 - Many different types of ozone generators...Ch. 2 - The effect a chemical substance has on the ozone...Ch. 2 - Prob. 56Q
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