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Phosgene (Cl2CO) is a poisonous gas used as a chemical

Chemistry: A Molecular Approach | 3rd Edition | ISBN: 9780321809247 | Authors: Nivaldo J. Tro ISBN: 9780321809247 1

Solution for problem 96E Chapter 9

Chemistry: A Molecular Approach | 3rd Edition

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Chemistry: A Molecular Approach | 3rd Edition | ISBN: 9780321809247 | Authors: Nivaldo J. Tro

Chemistry: A Molecular Approach | 3rd Edition

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Problem 96E

Phosgene (Cl2CO) is a poisonous gas used as a chemical weapon during World War I. It is a potential agent for chemical terrorism today. Draw the Lewis structure of phosgene. Include all three resonance forms by alternating the double bond among the three terminal atoms. Which resonance structure is the best?

Step-by-Step Solution:

Solution 96E Step 1 of In order to write Phosgene we have to put C in the middle and Cl and O atoms all around, like indicated below Step 2 Carbon belong to IV A group, thus it has 4 valence electrons Oxygen belong to VI A group, thus it has 6 valence electrons Chlorine belongs to VII A group, thus it has 7 valence electrons The total electrons in this molecule are can be obtaine by the formula Total electrons= (Valence electrons in C) + (Valence electrons in O) + 2 (valence electrons in Chlorine)= 4 + 6 +2(7)= 24 Step 3. Let’s form the bonding pair first We used 6 electrons of 24 Step 4 Let’s assign three lone pairs to the atoms of Chlorine and Oxygen We used 24 of 24 electrons

Step 5 of 8

Chapter 9, Problem 96E is Solved
Step 6 of 8

Textbook: Chemistry: A Molecular Approach
Edition: 3
Author: Nivaldo J. Tro
ISBN: 9780321809247

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Phosgene (Cl2CO) is a poisonous gas used as a chemical

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