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Calorimetric Determination of Aqueous Ion Enthalpies

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Paul Siders

Department of Chemistry, University of Minnesota - Duluth, Duluth, MN 55812

J. Chem. Educ., 1997, 74 (2), p 235

DOI: 10.1021/ed074p235

Publication Date (Web): February 1, 1997

Section:

History, Education, and Documentation

Abstract

Enthalpies of formation of aqueous ions can be determined by solution calorimetry. This article describes an experiment for the physical chemistry laboratory. Enthalpies of formation of aqueous sodium, potassium, chloride and iodide ions are calculated from the enthalpies of solution of salts. The enthalpies of solution are measured with the Parr 1455 solution calorimeter. The calorimeter is controlled and data are collected by a computer attached to the calorimeter's serial port. The experiment is simple and yields results that are in good agreement with literature values.

Keywords (Audience):

Upper-Division Undergraduate

Keywords (Domain):

Laboratory Instruction

Keywords (Pedagogy):

Hands-On Learning / Manipulatives

Keywords (Subject):

Calorimetry / Thermochemistry

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This article has been cited by 1 ACS Journal articles (1 most recent appear below).

Modern Developments in the Physical Chemistry Laboratory
Samuel A. Abrash
2007 973 (), 115-151
- Modern Developments in the Physical Chemistry Laboratory
  Samuel A. Abrash
  2007 973 (), 115-151
  Developments in the physical chemistry laboratory since the publication of the germinal text by Schwenz and Moore (1) are categorized and reviewed. The categories examined include modern instrumentation, current topics in chemistry, integrated ...
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