redox and electrode potentials (A2) Flashcards
1
Q
voltaic cell
A
a cell which converts chemical energy into electrical energy
2
Q
half-cell
A
contains the chemical species present in a redox half-equation
3
Q
standard electrode potential
A
the tendency to be reduced and gain electrons
4
Q
what is the electrode potential of a standard hydrogen half cell?
A
0V
5
Q
standard cell potential
A
the electrode potential of the positive electrode - the electrode potential of the negative electrode
6
Q
electromotive force (emf)
A
the maximum potential difference between the two electrodes of a cell
7
Q
salt bridge
A
conc. solution of an electrolyte that does not react with either solution, connects the two solutions and allows ions to flow
8
Q
positive electrode
A
less reactive metal, is reduced
9
Q
negative electrode
A
more reactive metal, is oxidised
