Resumen de Intuitive Small-Scale Electrochemistry on 24-Well Plate and 3D-Printed Cover Yielding Accurate Results
Methin Intaraprasit, Piyathida Tawornparcha, Pann Veerapong, Taweetham Limpanuparb
Experiments involving electrochemical cells are of great pedagogical value for learners of introductory chemistry. This paper discusses an improved experimental kit made from a 24-well cell culture plate and a 3D-printed scaffold. The current design focuses not only on the accuracy of the result but also on the intuitiveness of the wiring work and measurement of the cell potential. Half-cells in this kit include metal ion|metal electrodes (Ag+|Ag, Cu2+|Cu, Fe2+|Fe, Mg2+|Mg, Ni2+|Ni, Pb2+|Pb, Sn2+|Sn, and Zn2+|Zn) and gas electrodes (Cl–|Cl2|Pt, H+|H2|Pt, and O2–|O2|Pt) as well as Br–|Br2|Pt and I–|I2|Pt. Cells are combined in a series circuit to light an LED or sound a buzzer. This kit can be used to enhance teaching and learning activities involving electrochemistry at the senior secondary school and first-year university levels.
