| Research Title |
Titrimetric Determination of Mixtures: An Experimental Design for the Undergraduate Students |
| Date of Distribution |
3 June 2016 |
| Conference |
| Title of the Conference |
The 4th International Conference of Science Educators and Teachers (2016) |
| Organiser |
คณะศึกษาศาสตร์ มหาวิทยาลัยขอนแก่น |
| Conference Place |
โรงแรมพลูแมน ราชา ออคิด ขอนแก่น |
| Province/State |
ขอนแก่น |
| Conference Date |
3 June 2016 |
| To |
5 June 2016 |
| Proceeding Paper |
| Volume |
1 |
| Issue |
1 |
| Page |
52-57 |
| Editors/edition/publisher |
|
| Abstract |
This paper has been developed the experiment with the continuous analysis of mixture samples for the undergraduate students. Iodide and oxalate are analyzed by the classical-indicator-based and potentiometric titrations. For the former method (redox titration), the strong oxidizing agent e.g. potassium permanganate is used as both a titrant and a self-indicator. The controlled factors include temperature, concentration of sulfuric acid and measuring time. The latter method is the precipitation titration. For the potentiometric measurement, a platinum indicator electrode and saturated calomel electrode are required of the redox reactions while a silver combination electrode is required for the precipitation reactions. The statistical values such as mean standard deviation, precision and percentage error were analyzed. The results from these two methods were compared by the t-test. The experiment introduces the students to the concepts of titration and quantitative analysis. |
| Author |
|
| Peer Review Status |
มีผู้ประเมินอิสระ |
| Level of Conference |
นานาชาติ |
| Type of Proceeding |
Full paper |
| Type of Presentation |
Poster |
| Part of thesis |
true |
| Presentation awarding |
false |
| Attach file |
|
| Citation |
0
|
|
|
Publication
Journal Publication
ไทย