Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Chapter 8, Problem 156CP
Interpretation Introduction
Interpretation: The first ionization energies of the given halogen atoms and the electronegativity of the fluorine tom has been given. The electronegativity values for the given halogens, with respect to the given formula, are to be calculated. These values need to be further compared with the stated electronegativity values for the given compounds.
Concept introduction: Electronegativity can be defined as the measure of the tendency of an electron to attract the shared pair of electrons towards itself. It is directly proportional to the difference between the ionization energy and the
To determine: The electronegativity values of the given halogens; a comparison of these values with the values in the text.
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Indicate the processes in the dismutation of Cu2O.
1. Consider these three reactions as the elementary steps in the mechanism for a chemical reaction.
2600
2400
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1200
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800
Potential Energy (kJ)
600
400
200
0
-200-
-400
-600-
-800
(i) Cl₂ (g) + Pt(s) → 2Cl (g) + Pt(s)
(ii) Cl (g)+ CO (g) + Pt (s) → CICO (g) + Pt (s)
Ea = 1550 kJ
Ea = 2240 kJ
(iii) Cl (g) + CICO (g) → Cl₂CO (g)
Ea
= 2350 kJ
AH=-950 kJ
ΔΗ = 575 ΚΙ
AH=-825 kJ
a. Draw the potential energy diagram for the reaction. Label the data points for clarity.
The potential energy of the reactants is 600 kJ
Reaction Progress
b. What is the overall chemical equation?
c. What is the overall change in enthalpy for the above chemical reaction?
d. What is the overall amount of activation energy for the above chemical reaction?
e. Which reaction intermediate would be considered a catalyst (if any) and why?
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draw the enolate anion and the carbonyl that would be needed to make this product through an aldol addition reaction.
Chapter 8 Solutions
Chemistry
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