Concept explainers
(a)
Interpretation:
The rearranged structure of more stable carbocation has to be suggested.
Concept Introduction:
Stability order of carbocation:
A carbon containing three bonds with positive charge is known as carbocation. This cat ion is stabilized by rearranging charge within the molecule.
The stability order of the carbocation is
(b)
Interpretation:
The rearranged structure of more stable carbocation has to be suggested.
Concept Introduction:
Stability order of carbocation:
A carbon containing three bonds with positive charge is known as carbocation. This cat ion is stabilized by rearranging charge within the molecule.
The stability order of the carbocation is
(c)
Interpretation:
The rearranged structure of more stable carbocation has to be suggested.
Concept Introduction:
Stability order of carbocation:
A carbon containing three bonds with positive charge is known as carbocation. This cat ion is stabilized by rearranging charge within the molecule.
The stability order of the carbocation is
(d)
Interpretation:
The rearranged structure of more stable carbocation has to be suggested.
Concept Introduction:
Stability order of carbocation:
A carbon containing three bonds with positive charge is known as carbocation. This cat ion is stabilized by rearranging charge within the molecule.
The stability order of the carbocation is
(e)
Interpretation:
The rearranged structure of more stable carbocation has to be suggested.
Concept Introduction:
Stability order of carbocation:
A carbon containing three bonds with positive charge is known as carbocation. This cat ion is stabilized by rearranging charge within the molecule.
The stability order of the carbocation is
(f)
Interpretation:
The rearranged structure of more stable carbocation has to be suggested.
Concept Introduction:
Stability order of carbocation:
A carbon containing three bonds with positive charge is known as carbocation. This cat ion is stabilized by rearranging charge within the molecule.
The stability order of the carbocation is
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Chapter 9 Solutions
Organic Chemistry
- Calculate the packing factor of CaTiO3. It has a perovskite structure. Data: ionic radii Co²+ = 0.106 nm, Ti4+ = 0.064 nm, O² = 0.132 nm; lattice constant is a = 2(rTi4+ + ro2-). Ca2+ 02- T14+ Consider the ions as rigid spheres. 1. 0.581 or 58.1% 2. -0.581 or -58.1 % 3. 0.254 or 25.4%arrow_forwardGeneral formula etherarrow_forwardPlease provide the retrosynthetic analysis and forward synthesis of the molecule on the left from the starting material on the right. Please include hand-drawn structures! will upvote! Please correct answer and don't used hand raitingarrow_forward
- Please provide the retrosynthetic analysis and forward synthesis of the molecule on the left from the starting material on the right. Please include hand-drawn structures! will upvote!arrow_forward(please correct answer and don't used hand raiting) Please provide the retrosynthetic analysis and forward synthesis of the molecule on the left from the starting material on the right. Please include hand-drawn structures! will upvote!arrow_forwardCaTiO3 has a perovskite structure. Calculate the packing factor.Data: ionic radii Co+2 = 0.106 nm, Ti+4 = 0.064 nm, O-2 = 0.132 nm; lattice constant is a = 2(rTi4+ + rO-2).(a) 0.581(b) -0.581(c) 0.254(d) -0.254arrow_forward
- In the initial linear section of the stress-strain curve of a metal or alloy. Explain from the point of view of atomic structure?(a) No, the atomic level properties of the material can never be related to the linear section.(b) The elastic zone is influenced by the strength of the bonds between atoms.(c) The stronger the bond, the less rigid and the lower the Young's Modulus of the material tested.(d) The stronger the bond, the less stress is necessary to apply to the material to deform it elastically.arrow_forwardThe degree of polymerization of polytetrafluoroethylene (Teflon) is 7500 (mers/mol). If all polymer chains have equal length, state the molecular weight of the polymer and the total number of chains in 1000 g of the polymer(a) 50 000 g/mol; 0.03·1020 chains(b) 100 000 g/mol; 1.03·1020 chains(c) 750 000 g/mol; 8.03·1020 chainsarrow_forwardIn natural rubber or polyisoprene, the trans isomer leads to a higher degree of crystallinity and density than the cis isomer of the same polymer, because(a) it is more symmetrical and regular.(b) it is less symmetrical.(c) it is irregular.arrow_forward
- Most ceramic materials have low thermal conductivities because:(a) Electron mobility is strongly restricted due to their strong ionic-covalent bonding.(b) False, in general they are excellent thermal conductors (they are used in ovens).(c) Electron mobility is dependent on T and therefore they are poor conductors at high temperatures.(d) Electron mobility is very restricted by secondary bonds.arrow_forwardResistivity and electrical conductivity.(a) In metals, resistivity decreases.(b) In metals, resistivity decreases and conductivity in semiconductors also decreases with increasing temperature.(c) With increasing temperature, resistivity in metals and conductivity in semiconductors also increases.(d) None of the above.arrow_forwardState the difference between concrete and Portland cement.(a) There are no differences, in concrete the chemical composition is silicates and in cement aluminates.(b) The chemical composition of concrete is based on silicates and in cement aluminates.(c) Concrete is composed of aggregates bound by cement and cement "only" contains different minerals.(d) Cement is aggregates bound by concrete.arrow_forward
Organic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage Learning