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A Quantitative Conductance Apparatus
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Abstract
Circuitry, electrode configuration and calibration procedures are described for a conductance device. An alternative construction of the circuit is given allowing computer capture of the instrument response. A correlation is displayed between conductance (mho) measured by the device with a fixed electrode configuration and the response of a commercial conductivity meter (mho/cm). The correlation is established for aqueous solutions exhibiting conductivities in a three orders of magnitude range. Conductance measurements are listed for a homologous series of alcohols.
Keywords (Audience):
High School / Introductory ChemistryKeywords (Subject):
Instrumental MethodsCiting Articles
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This article has been cited by 2 ACS Journal articles (2 most recent appear below).
Exploring Fundamental Concepts in Aqueous Solution Conductivity: A General Chemistry Laboratory Exercise
Frazier Nyasulu, Kelly Stevanov, and Rebecca BarlagJournal of Chemical Education2010 87 (12), 1364-1366Exploring Fundamental Concepts in Aqueous Solution Conductivity: A General Chemistry Laboratory Exercise
Frazier Nyasulu, Kelly Stevanov, and Rebecca BarlagJournal of Chemical Education2010 87 (12), 1364-1366Using a conductivity sensor, a temperature sensor, and a datalogger, fundamental factors that affect conductivity are explored. These factors are (i) concentration, (ii) temperature, (iii) ion charge, and (iv) size and or mass of anion. In addition, the ...
Hand-Held Conductivity Meter and Probe for Small Volumes and Field Work
Barry R. GanongJournal of Chemical Education2000 77 (12), 1606Hand-Held Conductivity Meter and Probe for Small Volumes and Field Work
Barry R. GanongJournal of Chemical Education2000 77 (12), 1606A portable conductivity meter and probe are described. They have a unique combination of features that permits use with small volumes in the laboratory or in the field. The probe consists of two graphite electrodes embedded in a rigid plastic tube with a ...
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History
- Received: August 03, 2009
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