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Concept explainers
a) H3C-Cl
Interpretation:
Using δ+/δ- convention, the direction of expected polarity for C-Cl bond in H3C-Cl is to be indicated.
Concept introduction:
Normally a crossed arrow is used to indicate the direction of the bond polarity. By convention electrons are displaced in the direction of the arrow. The tail of the arrow which looks like a plus sign is electron-poor (δ+) and the head of the arrow is electron rich (δ-).
To indicate:
Using δ+/ δ- convention, the direction of expected polarity for C-Cl bond in H3C-Cl.
b) H3C-NH2
Interpretation:
Using δ+/δ- convention, the direction of expected polarity for C-N bond in H3C-NH2 is to be indicated.
Concept introduction:
Normally a crossed arrow is used to indicate the direction of the bond polarity. By convention electrons are displaced in the direction of the arrow. The tail of the arrow which looks like a plus sign is electron-poor (δ+) and the head of the arrow is electron rich (δ-).
To indicate:
Using δ+/δ- convention, the direction of expected polarity for C-N bond in H3C-NH2.
c) H2N-H
Interpretation:
Using δ+/δ- convention, the direction of expected polarity for N-H bond in H2N-H is to be indicated.
Concept introduction:
Normally a crossed arrow is used to indicate the direction of the bond polarity. By convention electrons are displaced in the direction of the arrow. The tail of the arrow which looks like a plus sign is electron-poor (δ+) and the head of the arrow is electron rich (δ-).
To indicate:
Using δ+/ δ- convention, the direction of expected polarity for N-H bond in H2N-H.
d) H3C-SH
Interpretation:
Using δ+/δ- convention, the direction of expected polarity for C-S bond in H3C-SH is to be indicated.
Concept introduction:Â
Normally a crossed arrow is used to indicate the direction of the bond polarity. By convention electrons are displaced in the direction of the arrow. The tail of the arrow which looks like a plus sign is electron-poor (δ+) and the head of the arrow is electron rich (δ-).
To indicate:
Using δ+/δ- convention, the direction of expected polarity for C-S bond in H3C-SH.
e) H3C- Mg Br
Interpretation:
Using δ+/δ- convention, the direction of expected polarity for C-Mg bond in H3C-Mg Br is to be indicated.
Concept introduction:
Normally a crossed arrow is used to indicate the direction of the bond polarity. By convention electrons are displaced in the direction of the arrow. The tail of the arrow which looks like a plus sign is electron-poor (δ+) and the head of the arrow is electron rich (δ-).
To indicate:
Using δ+/δ- convention, the direction of expected polarity for C-Mg bond in H3C-Mg Br.
f) H3C-F
Interpretation:
Using δ+/δ- convention, the direction of expected polarity for C-F bond in H3C-F is to be indicated.
Concept introduction:
Normally a crossed arrow is used to indicate the direction of the bond polarity. By convention electrons are displaced in the direction of the arrow. The tail of the arrow which looks like a plus sign is electron-poor (δ+) and the head of the arrow is electron rich (δ-).
To indicate:
Using δ+/δ- convention, the direction of expected polarity for C-F bond in H3C-F.
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Chapter 2 Solutions
OWLv2 with Student Solutions Manual eBook, 4 terms (24 months) Printed Access Card for McMurry's Organic Chemistry, 9th
- 16. Consider the probability distribution p(x) = ax", 0 ≤ x ≤ 1 for a positive integer n. A. Derive an expression for the constant a, to normalize p(x). B. Compute the average (x) as a function of n. C. Compute σ2 = (x²) - (x)², the variance of x, as a function of n.arrow_forward451. Use the diffusion model from lecture that showed the likelihood of mixing occurring in a lattice model with eight lattice sites: Case Left Right A B C Permeable Barrier → and show that with 2V lattice sites on each side of the permeable barrier and a total of 2V white particles and 2V black particles, that perfect de-mixing (all one color on each side of the barrier) becomes increasingly unlikely as V increases.arrow_forward46. Consider an ideal gas that occupies 2.50 dm³ at a pressure of 3.00 bar. If the gas is compressed isothermally at a constant external pressure so that the final volume is 0.500 dm³, calculate the smallest value Rest can have. Calculate the work involved using this value of Rext.arrow_forward
- Nonearrow_forward2010. Suppose that a 10 kg mass of iron at 20 C is dropped from a heigh of 100 meters. What is the kinetics energy of the mass just before it hits the ground, assuming no air resistance? What is its speed? What would be the final temperature of the mass if all the kinetic energy at impact is transformed into internal energy? The molar heat capacity of iron is Cpp = 25.1J mol-¹ K-1 and the gravitational acceleration constant is 9.8 m s¯² |arrow_forwardell last during 7. Write the isotopes and their % abundance of isotopes of i) Cl ii) Br 8. Circle all the molecules that show Molecular ion peak as an odd number? c) NH2CH2CH2NH2 d) C6H5NH2 a) CH³CN b) CH3OHarrow_forward
- Calsulate specific heat Dissolution of NaOH ก ง ง Mass of water in cup Final temp. of water + NaOH Initial temp. of water AT Water AH Dissolution NaOH - "CaicuraORT. AH (NaOH)=-AH( 30g (water) 29.0°C 210°C 8°C (82) 100 3.. =1003.20 Conjosarrow_forwardPlease provide throrough analysis to apply into further problems.arrow_forwardMolecular ion peak: the peak corresponding to the intact morecure (with a positive charge) 4. What would the base peak and Molecular ion peaks when isobutane is subjected to Mass spectrometry? Draw the structures and write the molecular weights of the fragments. 5. Circle most stable cation a) tert-butyl cation b) Isopropyl cation c) Ethyl cation. d)Methyl cationarrow_forward
- How many arrangements are there of 15 indistinguishable lattice gas particles distributed on: a.V = 15 sites b.V = 16 sites c.V = 20 sitesarrow_forwardFor which element is the 3d subshell higher in energy than that 4s subshell? Group of answer choices Zr Ca V Niarrow_forwardii) Molecular ion peak :the peak corresponding to the intact molecule (with a positive charge) What would the base peak and Molecular ion peaks when isobutane is subjected to Mass spectrometry? Draw the structures and write the molecular weights of the fragments. Circle most stable cation a) tert-butyl cation b) Isopropyl cation c) Ethyl cation. d) Methyl cation 6. What does a loss of 15 represent in Mass spectrum? a fragment of the molecule with a mass of 15 atomic mass units has been lost during the ionization Process 7. Write the isotopes and their % abundance of isotopes of i) Clarrow_forward
- Chemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage LearningIntroduction to General, Organic and BiochemistryChemistryISBN:9781285869759Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar TorresPublisher:Cengage Learning
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