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Explain the difference between endothermic reactions and

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

Solution for problem 32E 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 32E

Problem 32E

Explain the difference between endothermic reactions and exothermic reactions with respect to the bond energies of the bonds broken and formed.

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Solution :Step-1SiF 4 In SiF t4 central atom is S and is surrounded by four F atoms. 2 2 2 2 514i [Ne]3s 3p 9F 1s 2s 2pThe total valence electrons = 4 + 4(7) = 32The Lewis structure of SiF 4Si atom has 4 bonded pair atoms on it which is symmetrically arranged on it and there is no lonepair electron on the central atom. As it is known that an atom with 4 bond pair electrons with nononbonded electrons have a tetrahedral electron domain geometry and it has only one possible oF-Si-F bond angle 109.5 .Step-2PF 5In PF t5 central atom is P , surrounded by 5 F-atoms. 2 2 6 2 3 2 2 515 1s 2s 2p 3s 3p 9F 1s 2s 2pThe total valence electrons = 5 + 5(7) = 40The Lewis structure of PF 5 PF has 5 bonded pair atoms on it , with zero nonbonded electrons. As it is known that an atom 5with 5 bond pair electrons with no nonbonded electrons have a trigonal bipyramidal electron odomain geometry . It has two possible axial F-P-F bond, with bond angle 90 and 180 and one o equatorial bond , with bond angle 120 .\nStep-3SF 4In SF t4 central atom is S , surrounded by 4 F-atoms. 2 2 6 2 4 2 2 516 1s 2s 2p 3s 3p 9F 1s 2s 2pThe total valence electrons = 6 + 4(7) = 34The Lewis structure of SF 4SF 4 4 bonded pair atoms on it , with 1 nonbonded pair of electron. As it is known that anatom with 4 bond pair electrons with 1 nonbonded electrons have a trigonal bipyramidal oelectron domain geometry . It has two possible axial F-S-F bond, with bond angle 90 and 180and one equatorial bond , with bond angle 120 . o Step-4AsF 3In AsF th3 entral atom is As , surrounded by 3 F-atoms. 10 2 3 2 2 516s [Ar] 3d 4s 4p 9F 1s 2s 2pThe total valence electrons = 5 + 3(7) = 26The Lewis structure of AsF 3AsF h3 3 bonded pair atoms on it , with 1 nonbonded pair of electron. As it is known that anatom with 3 bond pair electrons with 1 nonbonded electrons have a trigonal planar electrondomain geometry . it has only one possible F-As-F bond angle 120 . o

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Chapter 9, Problem 32E is Solved
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Textbook: Chemistry: A Molecular Approach
Edition: 3
Author: Nivaldo J. Tro
ISBN: 9780321809247

The answer to “Explain the difference between endothermic reactions and exothermic reactions with respect to the bond energies of the bonds broken and formed.” is broken down into a number of easy to follow steps, and 21 words. This full solution covers the following key subjects: reactions, energies, Broken, difference, endothermic. This expansive textbook survival guide covers 82 chapters, and 9454 solutions. The full step-by-step solution to problem: 32E from chapter: 9 was answered by , our top Chemistry solution expert on 02/22/17, 04:35PM. This textbook survival guide was created for the textbook: Chemistry: A Molecular Approach, edition: 3. Since the solution to 32E from 9 chapter was answered, more than 368 students have viewed the full step-by-step answer. Chemistry: A Molecular Approach was written by and is associated to the ISBN: 9780321809247.

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Explain the difference between endothermic reactions and