CHEMISTRY (LOOSELEAF) >CUSTOM<
13th Edition
ISBN: 9781264348992
Author: Chang
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Question
Chapter 11.6, Problem 5PE
Interpretation Introduction
Interpretation:
The number of atoms in a body-centred cubic (BCC) unit cell, has to be determined.
Concept Introduction:
BCC: In the body-centred cubic (BCC) unit cell, there will be only one centre in the body of the whole cube and the one atom in the body centre, will be shared by only one unit cell. Apart from the body centre, there will be 8 corners in the cube and each corner atom will be shared with 8 unit cells.
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Rank each of the following substituted benzene molecules in order of which will react fastest (1) to slowest (4) by electrophilic
aromatic substitution.
Explanation
Check
CF3
(Choose one)
OH
(Choose one)
H
(Choose one)
(Choose one)
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Identifying electron-donating and electron-withdrawing effects
For each of the substituted benzene molecules below, determine the inductive and resonance effects the substituent will have on the
benzene ring, as well as the overall electron-density of the ring compared to unsubstituted benzene.
Molecule
Inductive Effects
Resonance Effects
Overall Electron-Density
CF3
O donating
O donating
O electron-rich
O withdrawing
withdrawing
O no inductive effects
O no resonance effects
O electron-deficient
O similar to benzene
OCH3
Explanation
Check
O donating
O donating
○ withdrawing
withdrawing
O no inductive effects
no resonance effects
electron-rich
electron-deficient
O similar to benzene
Х
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The acid-base chemistry of both EDTA and EBT are important to ensuring that the reactions proceed as desired, thus the pH is controlled using a buffer. What percent of the EBT indicator will be in the desired HIn2- state at pH = 10.5. pKa1 = 6.2 and pKa2 = 11.6 of EBT
Chapter 11 Solutions
CHEMISTRY (LOOSELEAF) >CUSTOM<
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