Pushing Electrons
4th Edition
ISBN: 9781133951889
Author: Weeks, Daniel P.
Publisher: Cengage Learning
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Chapter 1, Problem 14EQ
Interpretation Introduction
Interpretation:
The total number of electrons in the given molecular skeleton is to be calculated and there by the Lewis structure is to be determined.
Concept Introduction:
The electrons present in the valance shell are called as valance electrons. A single bond is formed by involving two valance electrons. The valance electrons which are not involved in bonding are called as lone pair of electrons and they are usually represented as dots over the atom.
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To answer the questions, interpret the following Lewis structure for SO42-.
For the central sulfur atom:
...
The number of lone pairs
=
The number of single bonds
=
The number of double bonds
=
The central sulfur atom: obeys octet rules or expanded octet rules or has incomplete octet rules?
2) To answer the questions, interpret the following Lewis diagram for
CO2
.For the central carbon atom:
...
The number of lone pairs
=
The number of single bonds
=
The number of double bonds
=
The central carbon atom: obeys octet rules or expanded octet rules or has incomplete octet rules?
3) To answer the questions, interpret the following Lewis structure for BCl3.
For the central boron atom:
...
The number of lone pairs
=
The number of single bonds
=
The number of double bonds
=
the central boron atom: obeys octet rules or expanded octet rules or has incomplete octet rules?
In the following bond, which atom will have the &- ?
H-I
Just write the atom name as it is written in the question.
Multiple bonds behave as a single electron pair bond in structural determination. Expalin the statement with example.
Chapter 1 Solutions
Pushing Electrons
Ch. 1 - 1. Hydrogen is a Group I element and each...Ch. 1 - Methanol has the molecular formula CH4O. Its...Ch. 1 - 3. The skeleton of chloromethane is...Ch. 1 - 4. Methanol’s skeleton is
Connecting all bonded...Ch. 1 - 5. The structure for chloromethane is
It...Ch. 1 - Prob. 6EQCh. 1 - 7. Dimethyl ether
No. of electrons in...Ch. 1 - Methylamine (CH5N) No. of electrons in structure...Ch. 1 - Methanethiol (CH4S) No. of electrons in structure...Ch. 1 - Methylal (C3H8O2) No. of electrons in structure...
Ch. 1 - Prob. 11EQCh. 1 - Adding electrons to the skeleton by making single...Ch. 1 - This is done by removing an unshared pair from...Ch. 1 - Prob. 14EQCh. 1 - Prob. 15EQCh. 1 - Prob. 16EQCh. 1 - The skeleton of acetyl chloride is . Write the...Ch. 1 - Three constitutional isomers exist for the formula...Ch. 1 - A number of constitutional isomers exist for the...Ch. 1 - Using the method outlined above, derive the...Ch. 1 - Prob. 21EQCh. 1 - Prob. 22EQCh. 1 - Prob. 23EQCh. 1 - Prob. 24EQCh. 1 - The skeleton of benzyldimethylamine is
The...Ch. 1 - The skeleton is benzaldoxime is The number of...Ch. 1 - Prob. 27EQCh. 1 - Derive Lewis structures for the compounds below....Ch. 1 - Prob. 29EQCh. 1 - Derive Lewis structures for the compounds below....Ch. 1 - Prob. 31EQCh. 1 - Derive Lewis structures for the compounds below....Ch. 1 - The Lewis structure of acetone is Circling the...Ch. 1 - Chloromethane has the Lewis...Ch. 1 - In the Lewis structure for chloromethane, the...Ch. 1 - Prob. 36EQCh. 1 - The oxygen atom in acetone possesses ____ unshared...Ch. 1 - Nitrobenzene has the skeleton
The number of...Ch. 1 - Prob. 39EQCh. 1 - Compute and add on the formal charges I these...Ch. 1 - Prob. 41EQCh. 1 - Prob. 42EQCh. 1 - Prob. 43EQCh. 1 - Prob. 44EQCh. 1 - Prob. 45EQCh. 1 - Prob. 46EQCh. 1 - Prob. 47EQCh. 1 - Compute and add on the formal charges in these...Ch. 1 - Prob. 49EQCh. 1 - Prob. 50EQCh. 1 - The n-propyl cation can be formed from a molecule...Ch. 1 - Prob. 52EQCh. 1 - Prob. 53EQCh. 1 - Methanol, CH3OH, is a compound in which the formal...Ch. 1 - When a proton becomes bonded to diethyl ether, by...Ch. 1 - Tetrahydrofuran has the structure
When a proton...Ch. 1 - Prob. 57EQCh. 1 - Prob. 58EQCh. 1 - The structure of pyridine is
When a proton...Ch. 1 - The carbon atom owns one electron from each of ...Ch. 1 - The n-butyl anion can be formed from When the CLi...Ch. 1 - The isobutyl anion can be formed from When the CNa...Ch. 1 - Prob. 63EQCh. 1 - Ethanol, , is a compound in which the formal...Ch. 1 - The loss of a proton attached to the oxygen atom...Ch. 1 - A very strong base can remove a proton from...Ch. 1 - Prob. 67EQCh. 1 - Prob. 68EQCh. 1 - Prob. 69EQCh. 1 - The homolysis of the OO bond in diacetyl peroxide...Ch. 1 - Prob. 71EQCh. 1 - Prob. 72EQCh. 1 - Prob. 73EQCh. 1 - Prob. 74EQCh. 1 - Prob. 75EQCh. 1 - Heterolytic cleavage of the CO bond to yield a...Ch. 1 - Prob. 77EQCh. 1 - Prob. 78EQCh. 1 - Prob. 79EQCh. 1 - Prob. 80EQ
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- The Lewis structure of acetone is Circling the carbonyl carbon, i.e., the carbon atom attached to oxygen, and its octet gives Circling the oxygen atom and its octet gives Thus, atoms share electrons in making bonds, and a pair of electrons may be included in the octet of two different atoms. When computing the formal charge on an atom, the number of electrons that belong to that atom is compared with the number of electrons the atom would have in the unbonded and neutral state. If the two numbers are the same, the formal charge on the atom is zero. In a Lewis structure both electrons in an unshared pair belong to the atom, and one of every pair of shared (bonding) electrons belongs to the atom.arrow_forwardIn the Lewis structure for chloromethane, the chlorine atom is sharing _____ electron pair and “owns” _____ of those electrons. Also, the chlorine atom possesses two electrons from each of _____ unshared pairs. The total number of electrons that belong to chlorine is 7 . Chlorine is a Group ____ element. The formal charge on chlorine in chloromethane is ____.arrow_forwardUnshared, or lone, electron pairs play an important role in determining the chemical and phy compounds. Thus, it is important to know which atoms carry unshared pairs. Use the structural formulas below to determine the number of unshared pairs at each Be sure your answers are consistent with the formal charges on the formulas. The number of unshared pairs at atom a is The number of unshared pairs at atom b is The number of unshared pairs at atom c is ALI H-A-H bH The number of unshared pairs at atom a is The number of unshared pairs at atom b is The number of unshared pairs at atom c isarrow_forward
- What does "penta-" mean? What does "di-" mean? The only exception for prefixes is when there is only one atom of the element. Example: CO is called Carbon Monoxide NOT MonoCarbon Monoxide Choose: first, secondarrow_forwardREFER TO IMAGEarrow_forward1.) Summarize the octet rule. Atoms have a tendency to lose, gain, or share electrons such that their (______________) valence shell or core shell results in an octet of electrons.In other words, atoms have a tendency to lose, gain, or share electrons so as to achieve the (_______________) stable or unstable electronic configuration of the (___________) inert metal or noble gas or reactive gas or reactive metal . 2.) Using the VSEPR model, identify the molecular geometry of nitrogen tribromide, NBr3, based on the number of electron domains. Circle the correct answer! Choose only 1. Linear trigonal planar bent tetrahedral trigonal pyramidal trigonal bipyramidal seesaw T-shaped Octahedral square pyramidal square planar 3.) What is the difference between sigma and pi bonds? You only have one attempt at this question. Circle the correct answer! Choose only 1. sigma bonds are the overlap of s-orbitals sigma bonds are the overlap of both s- and p-orbitals pi bonds are the…arrow_forward
- which one is? explainarrow_forwardWhen drawing resonance structures, which of the following are allowed? a) Using a different total number of valence electrons in each structure. b) Change the number of paired and unpaired electrons c) Change the connectivities of the nuclei. d) Using a double headed arrow between the structures. e) Move electrons from one location to another, such as bonding pairs to lone pairs.arrow_forwardWrite resonance structure for each of the following compounds and formal charges where appropriate. Which one most to hybrid? Explain.arrow_forward
- Explain what does it mean? "Multiple bonds behave as a single electron pair bond in structural determination." (VSEPR theory Postulate).arrow_forwardThe number of unshared pairs at atom a is ___The number of unshared pairs at atom b is ___.The number of unshared pairs at atom c isarrow_forwardClass: Date: Name: Chapter 7 Reyview 26. Formal charge is: a, the absolute value of the charge on a polyatomic anion or cation. b. the difference between the number of lone pairs of electrons and shared pairs of electrons on any atom in a Lewis structure. c. the difference between the number of valence electrons and the number of protons in any given atom. d. equal to the number of valence electrons in a free atom minus the number of shared in covalent bonds. e. the difference between the number of valence electrons in a free atom and the number of electrons assigned to the atom in a Lewis structure. 27. A Lewis structure of OCI ion is drawn below. What is the formal charge on each atom? Cl a. Cl atom = +1 and each O atom =-1 b. Cl atom =0 and each O atom =-1 c. Cl atom =-1 and each O atom = 0 d. Cl atom = +3 and each O atom = -2 e. Cl atom = 0, one O atom = 0, one O atom = -1 28. What is the formal charge on cach atom in CN? a. C = 0, N = 0 b. C= +1, N = -1 c. C = -1, N = 0 d. C = +2,…arrow_forward
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