Solubility and Thermodynamics: An Introductory Experiment

Robert G. Silberman
SUNY-Cortland, Cortland, NY 13045
J. Chem. Educ., 1996, 73 (5), p 426
DOI: 10.1021/ed073p426
Publication Date (Web): May 1, 1996

Abstract

This article describes a laboratory experiment suitable for high school or freshman chemistry students in which the solubility of potassium nitrate is determined at several different temperatures. The data collected is used to calculate the equilibrium constant, delta G, delta H, and delta S for dissolution reaction. The simplifying assumptions are noted in the article.

Keywords (Audience):

First-Year Undergraduate / General

Keywords (Domain):

Laboratory Instruction

Keywords (Feature):

Filtrates and Residues

Keywords (Pedagogy):

Hands-On Learning / Manipulatives

Keywords (Subject):

Precipitation / Solubility

Citing Articles

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This article has been cited by 5 ACS Journal articles (5 most recent appear below).

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      In this general chemistry laboratory exercise, the absorbance of [CoCl(iPrOH)3]+, where iPrOH is isopropyl alcohol, is used to determine the equilibrium constants for its reaction with methanol to form [CoCl(iPrOH)2(MeOH)3]+ in the temperature range 10 ...

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    Gibbs Energy Changes during Cobalt Complexation: A Thermodynamics Experiment for the General Chemistry Laboratory

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    Applications of Solubility Data

    Reginald P. T. Tomkins
    Journal of Chemical Education2008 85 (2), 310
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      Reginald P. T. Tomkins
      Journal of Chemical Education2008 85 (2), 310

      This article describes several applications of the use of solubility data. It is not meant to be exhaustive but rather to show that knowledge of solubility data is required in a variety of technical applications that assist in the design of chemical ...

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    A Simple Method for Determination of Solubility in the First-Year Laboratory

    Heather D. Harle , Julia A. Ingram , Phyllis A. Leber , Kenneth R. Hess and Claude H. Yoder
    Journal of Chemical Education2003 80 (5), 560
    • A Simple Method for Determination of Solubility in the First-Year Laboratory

      Heather D. Harle , Julia A. Ingram , Phyllis A. Leber , Kenneth R. Hess and Claude H. Yoder
      Journal of Chemical Education2003 80 (5), 560

      A method for determining solubility that is fast and requires only a Büchner-type filter funnel, a 500-mL round-bottom flask, and an analytical balance is described. The loss in weight of a compound after suction extraction with one liter of water ...

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    The Effects of Salts and Nonelectrolytes on the Solubility of Potassium Bitartrate: An Introductory Chemistry Discovery Experiment

    Charles J. Marzzacco
    Journal of Chemical Education1998 75 (12), 1628
    • The Effects of Salts and Nonelectrolytes on the Solubility of Potassium Bitartrate: An Introductory Chemistry Discovery Experiment

      Charles J. Marzzacco
      Journal of Chemical Education1998 75 (12), 1628

      An introductory chemistry discovery experiment on the effect of the presence of various solutes on the solubility of potassium bitartrate (KHT) is presented. Aqueous solutions of KCl, NaCl, MgSO4 and glucose with concentrations ranging from 0.0 to 0.10 M ...

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History

  • Received: August 03, 2009

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