In order to determine the standard voltage of a reaction
A) The individual reaction reduction potentials must be added
B) The standard cells must be written as they occur in the reaction and the voltages are added.
C) All the reactions must be written as oxidations and the voltages are added.
D) The voltages of the individual reactions at pH = 7 must be calculated and the resultant voltages are added.
E) A standard voltage for a reaction must be determined experimentally.
Answer: B) The standard cells must be written as they occur in the reaction and the voltages are added.