Experiences with an Inquiry-Based Ionic Liquid Module in an Undergraduate Physical Chemistry Laboratory

Area of Science:

• Chemistry
• Physical Chemistry
• Green Chemistry

Background:

• Ionic liquids are not typically covered in undergraduate curricula.
• Their properties (conductivity, vapor pressure, viscosity) differ significantly from traditional solvents.
• Ionic liquids are often termed "green solvents" due to potential environmental benefits.

Purpose of the Study:

• To integrate an ionic liquids module into an undergraduate physical chemistry laboratory course.
• To explore the unique structures and physical properties of ionic liquids.
• To compare ionic liquid properties with those of molecular solvents.

Main Methods:

• Implemented active learning techniques within the laboratory module.
• Investigated key physical properties: viscosity, conductivity, and vapor pressure.
• Utilized both summative and formative assessments to evaluate learning.

Main Results:

• A majority of students demonstrated comprehension of fundamental ionic liquid concepts.
• The active learning approach effectively facilitated understanding of unique solvent properties.
• Students were able to relate the properties of ionic liquids to molecular solvents.

Conclusions:

• The developed module and active learning strategies are effective for teaching ionic liquids.
• This approach can serve as a foundation for incorporating ionic liquids into undergraduate chemistry education.
• Successful student learning indicates the viability of introducing novel solvent systems at the undergraduate level.