Topic 19 Flashcards
1
Q
What is the standard electrode potential?
A
The electrode potential of a half cell measured under standard conditions reative to SHE
2
Q
What are the features of SHE?
A
- standard temp and pressure
- H2 gases comes in
- platinum electrode
- 1 mol dm3 of H+
3
Q
What is the equation for cell potential?
A
Ecell = E red - Eox
4
Q
The half cell with the more positive electrode potential is where?
A
At the cathode
5
Q
When Gibbs free energy is negative then what about the cell potential?
A
+ve
6
Q
What is the equation for Charge?
A
Q = IX T
7
Q
what is the correlation between the number of moles and faradays constant?
A
n= Q/ faraday constant
8
Q
What is electroplating?
A
When you coat an object with a thin layer of metal
9
Q
Electrolysis of aqeous solutions
A
- water can be oxidised at the anode and reduced at the cathode
- pure water is a poor conductor so NaOH is added
- look at eqautions in notes
