Difficulties Experienced by Pre-service Chemistry Teachers In Understanding The Relationship Between The Structures and Physicochemical Properties of Ionic Liquids
Devita Marlina Venessa (a*) Hernani(b), Heli Siti Halimatul (b)
a)Masters in Chemistry Education, Postgraduate School, Indonesian University of Education, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia
* dy2psihite[at]gmail.com
b)Department of Chemistry Education, Indonesian University of Education, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia
Abstract
The purpose of this study was to determine the difficulties faced by pre-service chemistry teachers in correlating the structures with physicochemical properties of ionic liquids. The descriptive research method used in this study is presented quantitatively and qualitatively. The participants in this study were 23 pre-service chemistry teachers from one of the universities in Indonesia. Data collected using an instrument in the form of a description that contains discourse on ionic liquid technology. In general, the results of the study indicate that more than half of the students have difficulties in applying chemical concepts related to the context of the relationship of structures with physicochemical properties of ionic liquids. The result also reveals that the most dominant difficulty experienced by pre-service chemistry teachers difficult to specify chemical concepts related to the tendency of differences in melting point of molten salt and ionic liquids. The results findings will be used as the basis for developing didactic designs that are oriented to resolve learning obstacles by pre-service chemistry teachers in understanding the relationship of structures with physicochemical properties of ionic liquids.
Keywords: difficulties; ionic liquid; pre-service chemistry teachers;
Topic: Chemistry Education