Use the following information to answer questions 21 to 23. Methyl benzoate, C6H5COOCH3(1), is a compound used to attract orchid bees. Methyl benzoate can be synthesized from methanol, CH3OH(1), and benzoic acid, C6H5COOH(s), as represented by the following equilibrium equation. conc. H₂SO4(aq) CH₂OH(1) + C6H5COOH(s) + 5.4 kJ The molar enthalpy of formation, AH°, of C6H5COOH(s) is -385.2 kJ/mol. 21. The oxidation number of carbon in CH3OH(1) is i and the sign of the oxidation number of carbon in C6H5COOH(s) is ii The statement above is completed by the information in row Row A. B. C. D. i -2 -2 +2 +2 ii negative positive negative C6H5COOCH3(1) + H₂O(1) positive "
Use the following information to answer questions 21 to 23. Methyl benzoate, C6H5COOCH3(1), is a compound used to attract orchid bees. Methyl benzoate can be synthesized from methanol, CH3OH(1), and benzoic acid, C6H5COOH(s), as represented by the following equilibrium equation. conc. H₂SO4(aq) CH₂OH(1) + C6H5COOH(s) + 5.4 kJ The molar enthalpy of formation, AH°, of C6H5COOH(s) is -385.2 kJ/mol. 21. The oxidation number of carbon in CH3OH(1) is i and the sign of the oxidation number of carbon in C6H5COOH(s) is ii The statement above is completed by the information in row Row A. B. C. D. i -2 -2 +2 +2 ii negative positive negative C6H5COOCH3(1) + H₂O(1) positive "
Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter17: Chemcial Thermodynamics
Section: Chapter Questions
Problem 17.79QE
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The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.
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Transcribed Image Text:Use the following information to answer questions 21 to 23.
Methyl benzoate, C6H5COOCH3(1), is a compound used to attract orchid bees.
Methyl benzoate can be synthesized from methanol, CH3OH(1), and benzoic acid,
C6H5COOH(s), as represented by the following equilibrium equation.
conc. H₂SO4(aq)
CH₂OH(1) + C6H5COOH(s) + 5.4 kJ
The molar enthalpy of formation, AH°, of C6H5COOH(s) is -385.2 kJ/mol.
21.
The oxidation number of carbon in CH3OH(1) is i
number of carbon in C6H5COOH(s) is ii
The statement above is completed by the information in row
Row
A.
B.
C.
D.
i
-2
-2
+2
+2
ii
negative
positive
negative
C6H5COOCH3(1) + H₂O(1)
positive
and the sign of the oxidation
2014
Transcribed Image Text:22.
Which of the following rows identifies the functional group present in methyl benzoate and
the line diagram that could represent methyl benzoate?
Functional Group
Line Diagram
Row
A.
B.
C.
D.
Carboxyl
Row
A.
B.
C.
D.
Carboxyl
Ester
Ester
Or
23. The reaction on the previous page would be classified as
ii
enthalpy of formation of methyl benzoate is +/-_
The statement above is completed by the information in row
i
endothermic
endothermic
exothermic
exothermic
o
0
ii
904.8 kJ/mol
333.2 kJ/mol
904.8 kJ/mol
333.2 kJ/mol
i
, and the molar
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