English  |  正體中文  |  简体中文  |  全文筆數/總筆數 : 6507/11669
造訪人次 : 29720320      線上人數 : 420
RC Version 3.2 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
搜尋範圍 進階搜尋

請使用永久網址來引用或連結此文件: http://ir.ncue.edu.tw/ir/handle/987654321/10430

題名: Complexometric Titration of Aluminum and Magnesium Ions in Commercial Antacids: An Experiment for General and Analytical Chemistry Laboratories
作者: Yang, Shui-Ping;Tsai, Ruei-Ying
貢獻者: 化學系
日期: 2006-06
上傳時間: 2012-05-23T02:28:25Z
出版者: American Chemical Society
摘要: Few chemical experiments use the reagents from consumer products. Student interest in chemistry usually suffers from the lack of relevance to their daily lives. Ultimately this leads to insufficient student chemical problem-solving ability. A novel experiment for determining metallic ions in commercial antacids is described. This experiment is developed with three independent protocols based on complexometric direct and back titrations containing the concepts and usages of blocking, masking, buffer controls and metallic indicators. The three protocols involve determining the total aluminum and magnesium ion contents and individual ion content. This approach is different from determining the acid-neutralizing power of anions in antacids using acid–base titration. Using statistical analyses, student and instructor data indicated good results. Student comments were positive. Thus, this experiment is feasible for general chemistry and introductory analytical chemistry laboratories.
關聯: Journal of Chemical Education, 83(6): 906-909
顯示於類別:[化學系] 期刊論文

文件中的檔案:

檔案 大小格式瀏覽次數
index.html0KbHTML736檢視/開啟


在NCUEIR中所有的資料項目都受到原著作權保護.

 


DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - 回饋