Custom eBook for Organic Chemistry
Custom eBook for Organic Chemistry
2nd Edition
ISBN: 9798214171104
Author: Straumanis
Publisher: Cengage Custom
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Chapter 5, Problem 8CTQ
Interpretation Introduction

Interpretation: The reason that explains bicarbonate is not a strong base should be determined.

Concept introduction: Lewis structure is a representation of molecules in which dots are shown to represent unshared electrons and lines are shown to represent bonds. These lines and dots represent distribution of electrons in the molecule.

When one single structure is unable to describe all the properties of a single-molecule, a phenomenon called resonance comes into play. This arises when two or more than two Lewis structures are possible for one molecule. All such structures are called resonating structures and have same placement of atoms in them but these have different locations of bond pairs and lone pairs. The resonating structures are inter-convertible with each other. The resultant of all the resonating or contributing structures is called the resonance hybrid.

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(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 0
Draw the Lewis dot structure of the conjugate base of cyclopentane by assuming all the atoms in the molecule obey the octet rule. Show all lone pairs and formal charges. Do no draw resonance structures.
Select the single best answer. For the following molecule, indicate the positive and negative ends of the dipole, using the symbol →→→→. Refer to a table of the Pauling electronegativity scale as needed. HF The arrow points to the left. The arrow points to the right.

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Custom eBook for Organic Chemistry

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