Edexcel IAL Chemistry A2 16.7 standard cell emf
Edexcel IAL Chemistry A2 16.7 standard cell emf
Use the Data Booklet value for each half-cell, subtract in the correct direction and check a positive E°cell before writing the feasible cell reaction.
How this is tested
- Calculate E°cell from Data Booklet values using right minus left or equivalent.
- Deduce unknown electrode potentials from measured emf and a reference half-cell.
- Use positive E°cell to choose reaction direction and combine balanced half-equations.