Organic Chemistry
Organic Chemistry
9th Edition
ISBN: 9781305080485
Author: John E. McMurry
Publisher: Cengage Learning
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Chapter 2.1, Problem 2P
Interpretation Introduction

a) H3C-Cl

Interpretation:

Using 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.

Interpretation Introduction

b) H3C-NH2

Interpretation:

Using 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+- convention, the direction of expected polarity for C-N bond in H3C-NH2.

Interpretation Introduction

c) H2N-H

Interpretation:

Using 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.

Interpretation Introduction

d) H3C-SH

Interpretation:

Using δ+- convention, the direction of expected polarity for C-S bond in H3C-SH 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+- convention, the direction of expected polarity for C-S bond in H3C-SH.

Interpretation Introduction

e) H3C- Mg Br

Interpretation:

Using 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+- convention, the direction of expected polarity for C-Mg bond in H3C-Mg Br.

Interpretation Introduction

f) H3C-F

Interpretation:

Using 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+- convention, the direction of expected polarity for C-F bond in H3C-F.

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Chapter 2 Solutions

Organic Chemistry

Ch. 2.7 - Nitric acid (HNO3) reacts with ammonia (NH3) to...Ch. 2.8 - Prob. 12PCh. 2.8 - Amide ion, H2N-, is a much stronger base than...Ch. 2.9 - Prob. 14PCh. 2.9 - Prob. 15PCh. 2.9 - Prob. 16PCh. 2.11 - Using curved arrows, show how the species in part...Ch. 2.11 - Prob. 18PCh. 2.12 - Of the two vitamins A and C, one is hydrophilic...Ch. 2.SE - Prob. 20VCCh. 2.SE - The following model is a representation of...Ch. 2.SE - cis-l, 2-Dichloroethylene and trans-1,...Ch. 2.SE - The following molecular models are representations...Ch. 2.SE - Predict the product(s) of the acid/base reactions...Ch. 2.SE - Use curved arrows to draw the protonated form of...Ch. 2.SE - Prob. 26MPCh. 2.SE - Double bonds can also act like Lewis bases,...Ch. 2.SE - Prob. 28APCh. 2.SE - Use the electronegativity table given in Figure...Ch. 2.SE - Which of the following molecules has a dipole...Ch. 2.SE - Prob. 31APCh. 2.SE - Phosgene, C12C=O, has a smaller dipole moment than...Ch. 2.SE - Prob. 33APCh. 2.SE - Methanethiol, CH3SH, has a substantial dipole...Ch. 2.SE - Calculate the formal charges on the atoms shown in...Ch. 2.SE - Assign formal charges to the atoms in each of the...Ch. 2.SE - Which of the following pairs of structures...Ch. 2.SE - Prob. 38APCh. 2.SE - 1, 3-Cyclobutadiene is a rectangular molecule with...Ch. 2.SE - Alcohols can act either as weak acids or as weak...Ch. 2.SE - The O-H hydrogen in acetic acid is more acidic...Ch. 2.SE - Draw electron-dot structures for the following...Ch. 2.SE - Write the products of the following acid-base...Ch. 2.SE - Rank the following substances in order of...Ch. 2.SE - Which, if any, of the substances in Problem 2-44...Ch. 2.SE - The ammonium ion (NH4+, pKa = 9.25) has a lower...Ch. 2.SE - Prob. 47APCh. 2.SE - Prob. 48APCh. 2.SE - Calculate Ka values from the following pka’s:...Ch. 2.SE - Calculate pKa values from the following Ka’s:...Ch. 2.SE - What is the pH of a 0.050 M solution of formic...Ch. 2.SE - Prob. 52APCh. 2.SE - Maleic acid has a dipole moment, but the closely...Ch. 2.SE - Assume that you have two unlabeled bottles, one of...Ch. 2.SE - Identify the acids and bases in the following...Ch. 2.SE - Which of the following pairs represent resonance...Ch. 2.SE - Draw as many resonance structures as you can for...Ch. 2.SE - Carbocations, which contain a trivalent,...Ch. 2.SE - We’ll see in the next chapter that organic...Ch. 2.SE - The azide functional group, which occurs in...Ch. 2.SE - Phenol, C6H5OH, is a stronger acid than methanol,...Ch. 2.SE - Thiamin diphosphate (TPP), a derivative of vitamin...Ch. 2.SE - Determine if each compound or ion below has a...Ch. 2.SE - Prob. 64APCh. 2.SE - Prob. 65APCh. 2.SE - Draw the conjugate base for each compound below...Ch. 2.SE - 1, 1, 1-Trichloroethanol is an acid more than 1000...
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