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The organic molecules shown here are derivatives of

Chemistry: The Central Science | 12th Edition | ISBN: 9780321696724 | Authors: Theodore E. Brown; H. Eugene LeMay; Bruce E. Bursten; Catherine Murphy; Patrick Woodward ISBN: 9780321696724 27

Solution for problem 116IE Chapter 9

Chemistry: The Central Science | 12th Edition

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Chemistry: The Central Science | 12th Edition | ISBN: 9780321696724 | Authors: Theodore E. Brown; H. Eugene LeMay; Bruce E. Bursten; Catherine Murphy; Patrick Woodward

Chemistry: The Central Science | 12th Edition

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10
4
Problem 116IE

The organic molecules shown here are derivatives of benzene in which six-membered rings are “fused” at the edges of the hexagons.

(a) Determine the empirical formula of benzene and of these three compounds., (b) Suppose you are given a sample of one of the compounds. Could combustion analysis be used to determine unambiguously which of the three it is? (c) Naphthalene, the active ingredient in mothballs, is a white solid. Write a balanced equation for the combustion of naphthalene to CO2(g) and H2O(g)., (d) Using the Lewis structure for naphthalene and the average bond enthalpies in Table, estimate the heat of combustion of naphthalene in kJ/mol.

Table Average Bond Enthalpies(kJ/mol)

Single Bonds

C—H

413

N—H

391

463

O—H

F—F

155

C—C

348

N—N

163

O—O

146

 

 

C—N

293

N—O

201

O—F

190

Cl—F

253

C—O

358

N—F

272

O—Cl

203

Cl—Cl

242

C—F

485

N—Cl

200

O—l

234

 

 

C—Cl

328

N—Br

243

 

 

Br—F

237

C—Br

276

 

 

S—H

339

Br—Cl

218

C—l

240

H—H

436

S—F

327

Br—Br

193

C—S

259

H—F

567

S—Cl

253

 

 

 

 

H—Cl

431

S—Br

218

I—Cl

208

Si—H

323

H—Br

Step-by-Step Solution:
Step 1 of 3

Week Two Chapter Two: Rates of Change and “the Derivative” Distance = Rate * Time Rate = Total distance / total time Average velocity = Distance/ time In general, the average change in Y with respect to X is: Y / X = (Y2-Y1) / (X2-X1) = Change in Y / Change in X Ex. 1: City A @ 8 am 200 miles...

Step 2 of 3

Chapter 9, Problem 116IE is Solved
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Textbook: Chemistry: The Central Science
Edition: 12
Author: Theodore E. Brown; H. Eugene LeMay; Bruce E. Bursten; Catherine Murphy; Patrick Woodward
ISBN: 9780321696724

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The organic molecules shown here are derivatives of

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