JCE Online Journal of Chemical Education
 | Subscriptions  | Software Orders  | Support  | Contributors  | Advertisers  | 

JCE Print
   Current Issue
 Previous Issues
 Supplements
 Search JCE Index

JCE Digital Library
   DigiDemos
 QBank
 SymMath
 WebWare

JCE Software
   Latest Releases
 Software & Video
 Downloads
 Support

Only@JCE Online
   JCE Online Store
 JCE HS CLIC
 JCE Discussion Forums
   Biographical Snapshots
 ChemEd Resource Shelf
 Featured Molecules
 Hal's Picks
 Project Chemlab
 Reviewed WWW Sites
 "Web-Ed" Articles

About JCE
   Features
 Publications
 Operations
 Outreach
 Contact Us


  Home > JCE Print > Journal of Chemical Education > Issues > 2004  > January  >
In the Laboratory
Acid–Base and Precipitation Equilibria in Wine
Miguel Palma and Carmelo G. Barroso
Departamento de Química Analítica, Universidad de Cádiz-Spain, Puerto Real, Cádiz, Spain
Cover
January 2004
Vol. 81 No. 1
p. 94
Abstract
The acid–base and precipitation equilibria in wine are used to teach the importance of chemical equilibria to the wine industry. The stability of wines is dependent on chemical equilibria, mainly the precipitation equilibrium of potassium hydrogen tartrate. However, this precipitation equilibrium is influenced by acid–base equilibrium and vice versa. A simple but effective experiment demonstrates the interactions between simultaneous equilibria involving hydrogen tartrate and helps students realize the importance of multiple equilibria in real-world systems.
Supplement
Instructions for the students, prelab and postlab questions, and notes for the instructor are available.
*  Contents JCE2004p0094W.doc (Microsoft Word)
*  Download
JCE2004p0094W.pdf

JCE2004p0094W.zip

JCE2004p0094W.sit
More Information
*  Citation
 Palma, Miguel; Barroso, Carmelo G. J. Chem. Educ. 2004 81 94.
*  Keywords
 Acid–Base Chemistry; Analytical Chemistry; Aqueous Solution Chemistry; Consumer Chemistry; Food Science; General Chemistry; Laboratory Instruction
*  History
 Created:
Last Updated:		 December 8, 2003
February 18, 2005
<< Previous Article Table of Contents Next Article >>
  Home > JCE Print > Journal of Chemical Education > Issues > 2004  > January  > Page 94


Subscriptions
 Subscription Info
 Order Forms

JCE HS CLIC

Our Secondary School editors work hard to distill all the JCE materials to produce a fraction of particular interest to high school teachers. We call it CLIC.
 JCE HS CLIC

Contributions Welcome
JCE welcomes your submission
 Contributors' Corner

Advertisers
In recent years we have worked hard to better match our advertisers with our readers. When shopping for chemistry education materials, visit our advertisers' WWW sites first.
 Recent Advertisers

Be An Ambassador
Take JCE along on your outreach missions. Copies of the Journal, guest access to JCE Online, our publications catalog, and more are available for your participants.
 Outreach with JCE

Comments to
jceonline@chem.wisc.edu		 Copyright © Division of Chemical Education, Inc., American Chemical Society.
All rights reserved.