Concept explainers
(a)
Interpretation:
All resonance contributors for the given molecule are to be drawn. The curved arrows that indicate which pairs of electrons are shifted in going from one resonance structure to the next are to be included.
Concept introduction:
Resonance exists in molecules or ions for which there are two or more valid Lewis structures. For such molecules or ions, each valid Lewis structure is called a resonance contributor. Resonance contributors differ only in the position of their valence electrons, not their atoms.
(b)
Interpretation:
All resonance contributors for the given ion are to be drawn. The curved arrows that indicate which pairs of electrons are shifted in going from one resonance structure to the next are to be included.
Concept introduction:
Resonance exists in molecules or ions for which there are two or more valid Lewis structures. For such molecules or ions, each valid Lewis structure is called a resonance contributor. Resonance contributors differ only in the position of their valence electrons, not their atoms.
(c)
Interpretation:
All resonance contributors for the given ion are to be drawn. The curved arrows that indicate which pairs of electrons are shifted in going from one resonance structure to the next are to be included.
Concept introduction:
Resonance exists in molecules or ions for which there are two or more valid Lewis structures. For such molecules or ions, each valid Lewis structure is called a resonance contributor. Resonance contributors differ only in the position of their valence electrons, not their atoms.
(d)
Interpretation:
All resonance contributors for the given molecule are to be drawn. The curved arrows that indicate which pairs of electrons are shifted in going from one resonance structure to the next are to be included.
Concept introduction:
Resonance exists in molecules or ions for which there are two or more valid Lewis structures. For such molecules or ions, each valid Lewis structure is called a resonance contributor. Resonance contributors differ only in the position of their valence electrons, not their atoms.
(e)
Interpretation:
All resonance contributors for the given molecule are to be drawn. The curved arrows that indicate which pairs of electrons are shifted in going from one resonance structure to the next are to be included.
Concept introduction:
Resonance exists in molecules or ions for which there are two or more valid Lewis structures. For such molecules or ions, each valid Lewis structure is called a resonance contributor. Resonance contributors differ only in the position of their valence electrons, not their atoms.
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Chapter 1 Solutions
Organic Chemistry: Principles and Mechanisms (Second Edition)
- All presented compounds contain oxygen atom in their structure. What is the formal charge on oxygen atom in each compound? PLEASE SOLVE FOR G, H, and I.arrow_forward#1: What is the formal charge of bromine in the structure of bromate, BrO3-? a) 0 b) +1 c) +2 d) -1 #2: Carbonate (CO32-) has three resonance structures. Choose the stayement that best expains the meaning of those 3 resonance structures. a) Carbonate consists of two single CO bonds and one double CO bond. b) Carbonate consists of one single structure which is an average of the three resonance structures. c) Carbonate quickly flips back and forth between three structures. d) Three different structures for carbonate coexist. #3: When compaing a carbon-carbon double bond (C==C) and a carbon-carbon single bond (C-C), the double bond is a) longer and shorter b) longer and weaker c) shorter and stronger d) shorter and weakerarrow_forwardIs the following true or false? Resonance is a useful tool to analyse intermediates, but cannot be used to examine starting materials or products.arrow_forward
- Draw out the organic shorthand for the molecules below, and then draw another possible resonance structure of the same molecule next to with arrows to show electron movement. -CH3CH2CONH3 -CH3CH2COOHarrow_forwardThe answer for this problem is a & b. But I dont understand or know why c isn't one of the correct answers. Which of the following has at least one C-O single bond?(more than one answer may be possible) a) H2CO3 b) HCO3- c) CO32-arrow_forward(a) (CH3)3CBr classify the compound as a methyl, primary, secondary, or tertiary halide.arrow_forward
- For each ion below, draw all reasonable resonance structures (linked by resonance arrows “↔”). Include curved arrows that indicate the movement of electrons between each resonance structure. Assign non-zero formal charges to each atom for each resonance structure. (a.) NO3– (nitrate) (b.) CH3COO– (acetate) (c.) N3– (azide) (d.) NCO– (isocyanate)arrow_forwardDraw all the isomers of C4H10O using bond-line formulas.arrow_forwardHow would I draw all the important resonance structures for cyanate (NCO1-)?arrow_forward
- Provide the following 2 resonance structures and indicate whether or not they're major or minorarrow_forwardAre the bond lengths or angles in benzene, comparedto other hydrocarbons, sufficient to decide if benzene exhibits resonanceand is especially stable? Discuss.arrow_forwardHydrocarbon A possesses a significant dipole, even though it iscomposed of only C—C and C—H bonds. Explain why the dipole arisesand use resonance structures to illustrate the direction of the dipole.Which ring is more electron rich?arrow_forward
- Introduction to General, Organic and BiochemistryChemistryISBN:9781285869759Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar TorresPublisher:Cengage LearningChemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage Learning