Topic 19
No description yet. This curated deck is ready for daily study.
Card preview (9)
What is the standard electrode potential?
The electrode potential of a half cell measured under standard conditions reative to SHE
What are the features of SHE?
• standard temp and pressure • H2 gases comes in • platinum electrode • 1 mol dm3 of H+
What is the equation for cell potential?
Ecell = E red - Eox
The half cell with the more positive electrode potential is where?
At the cathode
When Gibbs free energy is negative then what about the cell potential?
+ve
What is the equation for Charge?
Q = IX T
what is the correlation between the number of moles and faradays constant?
n= Q/ faraday constant
What is electroplating?
When you coat an object with a thin layer of metal
Electrolysis of aqeous solutions
• 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