from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Either of the two connected parts of an electrochemical cell, consisting of one electrode in a conductive fluid.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Alternative spelling of half cell.
Sorry, no etymologies found.
I prepare boxes with a bed of fresh, sifted earth to receive the larvae and the pupae, which I lodge each in a sort of half-cell formed by the imprint of my finger.
The method is a further development of the classical half-cell method, where two samples, one with a chemical tracer and one without, are placed into the half cells and connected, after which the samples are sliced and analyzed.
The experimental setup for the new half-cell method.
We usually use some metal like platinum as the conducting wire to allow the cell to discharge electricity. determine which half-cell oxidizes and usually the more active metal is the one oxidized during the reaction.
The salt bridge allows charge to move from one half-cell to the other but not completely mixed together.
When reduction or oxidation occurs, the metal ion in each part of the reaction is a half-cell, and these half-cells are connected by a salt bridge.
The activity series of metals determines which half-cell oxidizes and usually the more active metal is the one oxidized during the reaction.