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Reversible Reactions: Extent of Reaction and Theoretical Yield

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Title: Reversible Reactions: Extent of Reaction and Theoretical Yield
Language: English
Authors: Novak, Igor (ORCID 0000-0002-3413-2605)
Source: Journal of Chemical Education. Feb 2020 97(2):443-447.
Availability: Division of Chemical Education, Inc. and ACS Publications Division of the American Chemical Society. 1155 Sixteenth Street NW, Washington, DC 20036. Tel: 800-227-5558; Tel: 202-872-4600; e-mail: eic@jce.acs.org; Web site: http://pubs.acs.org/jchemeduc
Peer Reviewed: Y
Page Count: 5
Publication Date: 2020
Document Type: Journal Articles
Reports - Descriptive
Descriptors: Chemistry, Stoichiometry, Kinetics, Scientific Concepts, Symbols (Mathematics)
DOI: 10.1021/acs.jchemed.9b00881
ISSN: 0021-9584
Abstract: Theoretical yield and extent of reaction (degree of completion) are important concepts in stoichiometry and in chemical kinetics. We provide expressions describing theoretical yield (Y) and maximum extent of reaction (fractional yield, f[subscript max]) for five examples of commonly encountered reversible chemical reactions: A [equilibrium sign] B; A + B [equilibrium sign] C + D; A + B + C [equilibrium sign] D + E + F; A [equilibrium sign] B + C; and A + B [equilibrium sign] C. We discuss how the equilibrium constant and initial reactant concentration influence the maximum fractional yield (degree of reaction completion) and Y and illustrate their effects on specific examples of reversible reactions: conformer equilibria, esterification reaction, and ionization of weak acids.
Abstractor: As Provided
Entry Date: 2020
Accession Number: EJ1243355
Database: ERIC
FullText Text:
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  Data: Reversible Reactions: Extent of Reaction and Theoretical Yield
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  Data: <searchLink fieldCode="AR" term="%22Novak%2C+Igor%22">Novak, Igor</searchLink> (ORCID <externalLink term="http://orcid.org/0000-0002-3413-2605">0000-0002-3413-2605</externalLink>)
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  Data: Division of Chemical Education, Inc. and ACS Publications Division of the American Chemical Society. 1155 Sixteenth Street NW, Washington, DC 20036. Tel: 800-227-5558; Tel: 202-872-4600; e-mail: eic@jce.acs.org; Web site: http://pubs.acs.org/jchemeduc
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  Data: 10.1021/acs.jchemed.9b00881
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  Data: Theoretical yield and extent of reaction (degree of completion) are important concepts in stoichiometry and in chemical kinetics. We provide expressions describing theoretical yield (Y) and maximum extent of reaction (fractional yield, f[subscript max]) for five examples of commonly encountered reversible chemical reactions: A [equilibrium sign] B; A + B [equilibrium sign] C + D; A + B + C [equilibrium sign] D + E + F; A [equilibrium sign] B + C; and A + B [equilibrium sign] C. We discuss how the equilibrium constant and initial reactant concentration influence the maximum fractional yield (degree of reaction completion) and Y and illustrate their effects on specific examples of reversible reactions: conformer equilibria, esterification reaction, and ionization of weak acids.
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  Data: 2020
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