- #1
Fusilli_Jerry89
- 159
- 0
my teacher says that if you add acid to the solution then you don't use the H2) half reaction with the (10-7 M), but that you still do if you add a base. Is this true?
A standard reduction potential is a measure of the tendency of a species to gain electrons and undergo reduction in a chemical reaction. It is typically reported in volts (V) and is a standard way to compare the strength of oxidizing and reducing agents.
A standard reduction potential is determined by measuring the voltage generated by a half-cell when it is connected to a standard hydrogen electrode (SHE). The voltage measured is called the standard reduction potential.
A half-cell is a single electrode in a redox reaction. It consists of a metal or other conductive material in contact with a solution containing ions of the same metal or a different metal with a known standard reduction potential.
Half-cell potentials are used to predict the direction and strength of redox reactions. The larger the difference in standard reduction potential between two half-cells, the more likely a reaction will occur spontaneously.
The standard reduction potential of a half-cell can change depending on the concentration of the species involved and the temperature. However, the standard reduction potentials listed in reference tables are measured under specific conditions and are considered constant for practical purposes.