Nonmetal galvanic cells with Cobra SMARTsense

Principle

Just like metals, non-metals can also develop different solution pressures and therefore different potentials, as soon as they can form redox systems in suitable solvents. In many previous experiments, students have examined conventional galvanic cells in detail. In this experiment, students will learn that galvanic cells can also be made from non-metals.

Tasks

1. Construct a simplified standard hydrogen electrode.
2. Construct oxygen, chlorine, bromine, and iodine half-cells.
3. Build galvanic cells from these half-cells.
4. Measure the standard potentials of the resulting galvanic cells.

Learning objectives

Up until now, students have studied conventional galvanic cells in detail. In this experiment, they learn that galvanic cells can also be made from non-metals. Additionally, the concepts of reducing and oxidizing agents are examined.

Benefits

• This experiment is part of a complete set that covers all major curriculum topics in electrochemistry.
• Quick and easy experiment setup (instructions and risk assessment available).