21.4 Quantitative Electrolysis E° value in electrolysis Recall that the selective discharge of ions during electrolysis is affected by: the position of ions in the electrochemical series the concentration of ions Cations lower in the electrochemical series will be...
21.4 Cells and Batteries Rechargable and non-rechargeable cells Batteries are electrochemical cells used as portable sources of electricity Primary cells cannot be recharged and are discarded once the supply of electric current decreases. This happens when the...
20.3 Using E° Values The usage of E° values The value of standard electrode potential, E° can be used in some ways: To predict standard cell potentials, E°cell. To determine the direction of electron flow To predict the feasibility of reactions To determine the...
21.2 Measuring Standard Electrode Potential The big picture The standard electrode potential of the following system will be considered: A metal/metal ion half-cell with SHE A non-metal/non-metal ion half-cell with SHE An ion/ion(with different oxidation states)...
21.1 Standard Electrode Potential Electrode potentials and half-cells When a metal, M is immersed into water, there is a tendency that it will lose electrons and enter the water as metal ions, Mª⁺. Soon, the water becomes a solution of the metal ions. This leaves...
CHAPTER 21: Electrode Potentials Standard Electrode Potential Measuring Standard Electrode Potential Using E° Values Cells and Batteries Quantitative Electrolysis define the terms: standard electrode (redox) potential standard cell potential describe the...