Development of a handmade conductivity measurement apparatus and application to vegetables and fruits

Seng Set; Masakazu Kita

doi:10.1021/ed400611q

Development of a handmade conductivity measurement apparatus and application to vegetables and fruits

Seng Set, Masakazu Kita

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

This paper describes the development of a simple handmade conductivity measurement apparatus based on a Kohlrausch bridge with inexpensive materials. We have examined the reliability of this apparatus with standard solutions and then measured juices of vegetables and fruits as well as a sports drink. Comparisons to total alkali content as determined by titration were made. The handmade apparatus was introduced to high school chemistry classes through a lesson on the conductivity of electrolyte solutions. The results showed that the developed apparatus could be used effectively for teaching high school chemistry.

Original language	English
Pages (from-to)	892-897
Number of pages	6
Journal	Journal of Chemical Education
Volume	91
Issue number	6
DOIs	https://doi.org/10.1021/ed400611q
Publication status	Published - Jun 10 2014
Externally published	Yes

Keywords

Conductivity
First-Year Undergraduate/General
Food Science
Hands-On Learning/Manipulatives
High School/Introductory Chemistry
Laboratory Equipment/Apparatus
Laboratory Instruction
Physical Chemistry
Titration/Volumetric Analysis

ASJC Scopus subject areas

Chemistry(all)
Education

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10.1021/ed400611q

Cite this

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title = "Development of a handmade conductivity measurement apparatus and application to vegetables and fruits",

abstract = "This paper describes the development of a simple handmade conductivity measurement apparatus based on a Kohlrausch bridge with inexpensive materials. We have examined the reliability of this apparatus with standard solutions and then measured juices of vegetables and fruits as well as a sports drink. Comparisons to total alkali content as determined by titration were made. The handmade apparatus was introduced to high school chemistry classes through a lesson on the conductivity of electrolyte solutions. The results showed that the developed apparatus could be used effectively for teaching high school chemistry.",

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year = "2014",

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doi = "10.1021/ed400611q",

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AU - Kita, Masakazu

PY - 2014/6/10

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AB - This paper describes the development of a simple handmade conductivity measurement apparatus based on a Kohlrausch bridge with inexpensive materials. We have examined the reliability of this apparatus with standard solutions and then measured juices of vegetables and fruits as well as a sports drink. Comparisons to total alkali content as determined by titration were made. The handmade apparatus was introduced to high school chemistry classes through a lesson on the conductivity of electrolyte solutions. The results showed that the developed apparatus could be used effectively for teaching high school chemistry.

KW - Conductivity

KW - First-Year Undergraduate/General

KW - Food Science

KW - Hands-On Learning/Manipulatives

KW - High School/Introductory Chemistry

KW - Laboratory Equipment/Apparatus

KW - Laboratory Instruction

KW - Physical Chemistry

KW - Titration/Volumetric Analysis

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JO - Journal of Chemical Education

JF - Journal of Chemical Education

IS - 6

ER -

Development of a handmade conductivity measurement apparatus and application to vegetables and fruits

Abstract

Keywords

ASJC Scopus subject areas

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