Concept explainers
(a)
Interpretation:
The curve arrow should be drawn for contributing structure, valence electrons and all formal charges has to be shown.
Concept introduction:
Resonance: The delocalization of electrons which is characterized as several structural changes.
Formal charge:
The charge on an atom in a molecule is called its formal charge.
Formal charge can be calculated by using following formula,
(b)
Interpretation:
The curve arrow should be drawn for contributing structure, valence electrons and all formal charges has to be shown.
Concept introduction:
Resonance: The delocalization of electrons which is characterized as several structural changes.
Formal charge:
The charge on an atom in a molecule is called its formal charge.
Formal charge can be calculated by using following formula,
(c)
Interpretation:
The curve arrow should be drawn for contributing structure, valence electrons and all formal charges has to be shown.
Concept introduction:
Resonance: The delocalization of electrons which is characterized as several structural changes.
Formal charge:
The charge on an atom in a molecule is called its formal charge.
Formal charge can be calculated by using following formula,
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Organic Chemistry
- The oxygen atom in acetone possesses ____ unshared pairs and ____ shared pairs of electrons. The number of electrons that belong to oxygen is ____. Oxygen is a Group ____ element. The formal charge on oxygen in acetone is ____.arrow_forwardWhich elements on the periodic table (other than H) are likely to form a+1 cation?arrow_forwardThe Lewis structure of acetone is Circling the carbonyl carbon, i.e., the carbon atom attached to oxygen, and its octet gives Circling the oxygen atom and its octet gives Thus, atoms share electrons in making bonds, and a pair of electrons may be included in the octet of two different atoms. When computing the formal charge on an atom, the number of electrons that belong to that atom is compared with the number of electrons the atom would have in the unbonded and neutral state. If the two numbers are the same, the formal charge on the atom is zero. In a Lewis structure both electrons in an unshared pair belong to the atom, and one of every pair of shared (bonding) electrons belongs to the atom.arrow_forward
- Ethanol, , is a compound in which the formal charge on all the atoms is zero. Under certain conditions the bond can be broken so that both electrons remain with the oxygen atom. The products are In this structure the oxygen owns one electron from shared pair and two electrons from each of unshared pairs. The total number of electrons belonging to oxygen is Oxygen is a Group element. The formal charge on the oxygen atom is . The correct Lewis structure for the ethoxide ion is Note that the other fragment, the proton, leaves with a formal charge of +1.arrow_forward1. Draw the resonance structures of the following molecule, using curved arrows to show electron movement and appropriate arrows to show the relationship between the structures. All lone pairs and charges must be clearly shown.arrow_forwardDraw the Lewis structure created by the curved arrow. Write in formal charges wherever they are not equal to zero. H-N=c-H H-N=C-Harrow_forward
- According to the HONC rule, oxygen atom has a neutral formal charge , when it forms 2 bonds around itarrow_forwardDraw all applicable Lewis Structures complete with formal charges for HN3.arrow_forwardUnshared, or lone, electron pairs play an important role in determining the chemical and physical properties of organic compounds. Thus, it is important to know which atoms carry unshared pairs.Use the structural formulas below to determine the number of unshared pairs at each designated atom.Be sure your answers are consistent with the formal charges on the formulas. a)The number of unshared pairs at atom a is ___The number of unshared pairs at atom b is ___The number of unshared pairs at atom c is ___ b)The number of unshared pairs at atom a is ___The number of unshared pairs at atom b is ___The number of unshared pairs at atom c is ___arrow_forward
- Draw the Lewis structurearrow_forwardPart C Cio Draw the molecule by placing atoms on the grid and connecting them with bonds. Include all lone pairs of electrons. Show the formal charges of all atoms in the correct structure. To change the symbol of an atom, double-click on the atom, and enter the letter of the new atom.arrow_forwardThe following line angle drawings have all lone pairs shown. Add formal charges on specific atoms wherever they are needed to complete the structures. Hint: both molecules are overall neutral! :0 :0: H. : :0:arrow_forward
- Organic Chemistry: A Guided InquiryChemistryISBN:9780618974122Author:Andrei StraumanisPublisher:Cengage LearningChemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage Learning