Concept explainers
(a)
Interpretation:
The important resonance forms for the given compound are to be stated; the major and minor contributors in the resonating structures are to be indicated and whether they have the same energy is to be stated.
Concept introduction:
Resonance is the process in which a molecule gets different structures to define its bonding within the molecule. Such molecules cannot be represented in single Lewis structures. Resonating structures of such molecules are called contributing structures. In the process of resonance shifting of lone pairs occur with the bonds and other lone pairs.
The major contributors are those resonating structures in which almost all the atoms have filled octet.
The minor contributors are those resonating structures in which atoms have not filled octet, and electronegative atom carries a positive charge and vice-versa.
(b)
Interpretation:
The important resonance forms for the given compound are to be stated; the major and minor contributors in the resonating structures are to be indicated and whether they have the same energy is to be stated.
Concept introduction:
Resonance is the process in which a molecule gets different structures to define its bonding within the molecule. Such molecules cannot be represented in single Lewis structures. Resonating structures of such molecules are called contributing structures. In the process of resonance shifting of lone pairs occur with the bonds and other lone pairs.
The major contributors are those resonating structures in which almost all the atoms have filled octet.
The minor contributors are those resonating structures in which atoms have not filled octet, and electronegative atom carries a positive charge and vice-versa.
(c)
Interpretation:
The important resonance forms for the given compound are to be stated; the major and minor contributors in the resonating structures are to be indicated and whether they have the same energy is to be stated.
Concept introduction:
Resonance is the process in which a molecule gets different structures to define its bonding within the molecule. Such molecules cannot be represented in single Lewis structures. Resonating structures of such molecules are called contributing structures. In the process of resonance shifting of lone pairs occur with the bonds and other lone pairs.
The major contributors are those resonating structures in which almost all the atoms have filled octet.
The minor contributors are those resonating structures in which atoms have not filled octet, and electronegative atom carries a positive charge and vice-versa.
(d)
Interpretation:
The important resonance forms for the given compound are to be stated; the major and minor contributors in the resonating structures are to be indicated and whether they have the same energy is to be stated.
Concept introduction:
Resonance is the process in which a molecule gets different structures to define its bonding within the molecule. Such molecules cannot be represented in single Lewis structures. Resonating structures of such molecules are called contributing structures. In the process of resonance shifting of lone pairs occur with the bonds and other lone pairs.
The major contributors are those resonating structures in which almost all the atoms have filled octet.
The minor contributors are those resonating structures in which atoms have not filled octet, and electronegative atom carries a positive charge and vice-versa.
(e)
Interpretation:
The important resonance forms for the given compound are to be stated; the major and minor contributors in the resonating structures are to be indicated and whether they have the same energy is to be stated.
Concept introduction:
Resonance is the process in which a molecule gets different structures to define its bonding within the molecule. Such molecules cannot be represented in single Lewis structures. Resonating structures of such molecules are called contributing structures. In the process of resonance shifting of lone pairs occur with the bonds and other lone pairs.
The major contributors are those resonating structures in which almost all the atoms have filled octet.
The minor contributors are those resonating structures in which atoms have not filled octet, and electronegative atom carries a positive charge and vice-versa.
(f)
Interpretation:
The important resonance forms for the given compound are to be stated; the major and minor contributors in the resonating structures are to be indicated and whether they have the same energy is to be stated.
Concept introduction:
Resonance is the process in which a molecule gets different structures to define its bonding within the molecule. Such molecules cannot be represented in single Lewis structures. Resonating structures of such molecules are called contributing structures. In the process of resonance shifting of lone pairs occur with the bonds and other lone pairs.
The major contributors are those resonating structures in which almost all the atoms have filled octet.
The minor contributors are those resonating structures in which atoms have not filled octet, and electronegative atom carries a positive charge and vice-versa.
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Organic Chemistry (9th Edition)
- The structure of Vitamin C (ascorbic acid) is shown below. As the name indicates, the molecule is somewhat acidic. Actually, one of the hydrogens on the four OH groups is much more acidic than the other three ones. Which one is the acidic hydrogen? Hints: To find the answer, you will again have to draw some resonance structures of the product formed after loss of H+. Consider the product after the loss of H+ for each of the OH groups. Only two of the OH groups have resonance structures after deprotonation; one of these two groups has a much better resonance structure than the other one (again after deprotonation). Note that the oxygen atom that is part of the five-membered ring has nothing to do with the problem.arrow_forwardOut of these resonance structures which is the most significant contributor? Whyarrow_forwardDraw all the resonance contributors for the following molecule. Based on your resonance structures, which atoms are most electron deficient? Please re-draw the molecule and label these electron deficient molecules with "S+"- thus indicating it carries a partial positive charge.arrow_forward
- Find all the resonance structures and identify the best contributorarrow_forwardI’m having trouble finding example for the electron donating group(EDG) and electron withdrawing group (EWG) for these boxes. Can you help answer this?arrow_forwardYou will not find “hydroxide” in the stockroom, but you will find sodium hydroxide (NaOH) andpotassium hydroxide (KOH). Lithium hydroxide (LiOH) is expensive and used in spacecraft airfilters since hydroxide reacts with carbon dioxide, and lithium is lighter than sodium or potassium.Cesium and francium hydroxides are very expensive and little used. Is this information consistentwith your answer to the previous question?arrow_forward
- 5. Draw several resonance contributors for the cyanate ion, [OCN]. Circle the two lowest energy contributors. In the actual anion, on which atom does the negative charge primarily reside? Justify your answer.arrow_forwardi. (Chapter 9) Write all of the resonance contributors for the following molecule. If the various structures contribute differently to the overall molecule, label each contributor as major or minor. If all contributors have the same stability, write "contribute equally.' H3C- CH3arrow_forwarddraw all the significant resonance structures of this moleculearrow_forward
- Organic Chemistry: A Guided InquiryChemistryISBN:9780618974122Author:Andrei StraumanisPublisher:Cengage Learning