Concept explainers
(a)
Interpretation:
The resonance structure for the allyl anion that shows, along with the given structure, that the two
Concept introduction:
Most of the organic structures cannot be represented using single Lewis structure. Therefore, there exists more than one Lewis structure for representing a molecule or ion. These structures are known as resonance structures. These resonance structure combine together to give resonance hybrid that is lower in energy and is the most stable structure.
(b)
Interpretation:
The negative charge on each of the
Concept introduction:
Most of the organic structures cannot be represented using single Lewis structure. Therefore, there exists more than one Lewis structure for representing a molecule or ion. These structures are known as resonance structures. These resonance structure combine together to give resonance hybrid that is lower in energy and is the most stable structure.
(c)
Interpretation:
The single hybrid structure for the allyl anion that shows shared bonds as dashed lines and charges as partial charges is to be drawn.
Concept introduction:
Most of the organic structures cannot be represented using single Lewis structure. Therefore, there exists more than one Lewis structure for representing a molecule or ion. These structures are known as resonance structures. These resonance structure combine together to give resonance hybrid that is lower in energy and is the most stable structure.
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Organic Chemistry
- What is the structural diagram of CH2ClF without lone pairs? Also what is its Electronegativity bond after you subtract the smaller from the greater value along with its bond type, total lone pairs of electrons and total bonding pairs of electrons? Lastly, is it polar or non polar (polar molecularity) ?arrow_forwardHow many valence electrons are there in a correctly drawn Lewis structure for formamide, HCONH2 ( You should also be able to draw the lewis structure for this. Hint, the C is in the center with an O ,N and 1 H attached. The other H atoms are attached to the N)arrow_forward(a) Determine the formal charge of oxygen in the following structure. If the atom is formally neutral, indicate a charge of zero. (b) Draw an alternative Lewis (resonance) structure for the compound given in part (a). Show the unshared pairs and nonzero formal charges in your structure. Don't use radicals. Formal charge on O 0arrow_forward
- For each of the following covalent bonds: (a) use the symbols δ+ and δ- to indicate the direction of polarity (if any).(a) C-F; (b) N-Br; (c) B-C; (d) Si-H(b) Rank the following covalent bonds in order of increasing polarity. (i) C-H, O-H, N-H; (ii) C-N, C-O, B-O; (iii) C-P, C-S, C-Narrow_forwardClassify the following bonds as nonpolar, polar, or ionic: (a) the bond in ClF, (b) the bond in CsBr, and (c) the carbon-carbon double bond in C2H4.arrow_forwardThe cyanate ion is an anion consisting of one oxygen atom, one carbon atom, and onenitrogen atom, [OCN], in that order. a) Write three (3) resonance contributing structures for the cyanate ion. Show formalcharges.b) Based on your contributing structures, predict the O-C-N bond angle.arrow_forward
- Consider lisinopril, a drug used primarily in the treatment of high blood pressure, heart failure, and after heart attacks. (a) Complete the Lewis structure of lisinopril, showing all valence electrons. (b) Use the valence-shell electron-pair repulsion (VSEPR) model (Section 3.10) to predict all bond angles in lisinopril. (c) Which is the most polar bond in lisinopril? (d) Is lisinopril polar or nonpolar? (e) Is lisinopril expected to possess resonance (Section 3.9)? Explain why or why not. (f) Name the various functional groups in lisinopril. (g) What is the molecular formula of lisinopril? (h) What intermolecular forces are expected to exist between molecules of lisinopril in close proximity to one another (Section 5.7)?arrow_forwardThe two compounds nitrogen dioxide and dinitrogen tetraoxide are introduced in Section 3.13. (a) NO2 is an odd-electron compound. Draw the best Lewis diagrams possible for it, recognizing that one atom cannot achieve an octet configuration. Use formal charges to decide whether that should be the (central) nitrogen atom or one of the oxygen atoms. (b) Draw resonance forms for N2O4 that obey the octet rule. The two N atoms are bonded in this molecule.arrow_forwardDraw Lewis structures for each of the following molecules: (a) CH5N (contains a bond between C and N); (b) CH3NO2 (contains a bond between C and N but no bonds between C and O); (c) CH2O; (d) CH2Cl2; (e) BrCNarrow_forward
- The two compounds nitrogen dioxide and dinitrogentetraoxide are introduced in Section 3.13.(a) NO2 is an odd-electron compound. Draw the bestLewis diagrams possible for it, recognizing that oneatom cannot achieve an octet configuration. Use formal charges to decide whether that should be the(central) nitrogen atom or one of the oxygen atoms.(b) Draw resonance forms for N2O4 that obey the octetrule. The two N atoms are bonded in this molecule.arrow_forward3) The molecule diphosphorus tetraoxide (P,O,) has two central atoms and four different resonance structures that do not violate the octet rule. Draw two of these resonance structures below. 4) The compound acetone is a common solvent. It has a chemical formula of CH,COCH, Acetone has three central atoms. (a) Draw the Lewis Dot structure for acetone. (b) Give the Ideal Bond Angle for all three central atoms. 5) Four covalent molecules are drawn below. :o: H. H-CH H H (1) (2) (3) (4) a) Define each of these molecules as polar or non-polar. (1) (2) (3) b) Describe the type of intermolecular force that each molecule would use: (1) (2) (3) (4)arrow_forwardWhich of the following are not related as resonance structures? OH (A) `NH. NH (B) ОН (C) CH2 (D)arrow_forward
- Chemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage Learning