The formula for calculating ECell of an Anode-Half Cell is ECell = EAnode - ECathode, where EAnode is the standard electrode potential of the anode and ECathode is the standard electrode potential of the cathode.
The standard electrode potential of an anode can be found in a standard electrode potential table. This table lists the standard electrode potentials of different half cells at standard conditions.
Yes, ECell can be negative. A negative ECell value indicates that the reaction is not spontaneous. This means that the anode is not strong enough to oxidize the species in the cathode half cell.
ECell is a measure of the potential difference between the anode and cathode half cells. It determines whether a redox reaction is spontaneous or non-spontaneous. A positive ECell value indicates a spontaneous reaction, while a negative ECell value indicates a non-spontaneous reaction.
Temperature can affect the standard electrode potentials used in the ECell calculation. As temperature increases, the standard electrode potential of a half cell may also change. Therefore, it is important to use the standard electrode potentials at the same temperature when calculating ECell.