University Chemistry ›› 2016, Vol. 31 ›› Issue (6): 58-61.doi: 10.3866/PKU.DXHX201506014

• Chemistry Laboratory • Previous Articles     Next Articles

Experimental Improvements on Determination of Dissociation Constant of Acetic Acid by Conductometry

Yu-Huan CHEN*(),Shu-Ming ZHANG,Gui-Xiang WANG,Ying ZHANG   

  • Published:2016-06-29
  • Contact: Yu-Huan CHEN E-mail:yhchen@hebut.edu.cn
  • Supported by:
    河北工业大学2015年教育教学改革研究项目(201501003);河北省高等教育学会"十二五"规划2015年度课题(GJXH2015-274)

Abstract:

Experimental improvements on determination of dissociation constant of acetic acid have been made by using thermostat, improving solution preparation, and changing the way of using electrode. These improvements greatly expand the lifetime of electrodes and reduce the amount of reagents, reducing the experimental cost. The experimental procedure is much simpler and results are more accurate. These improvements enhance the students' understanding about the principle and the method.

Key words: Acetic acid, Dissociation constant, Conductivity, Experimental improvement

MSC2000: 

  • O646.1