We’re being asked to determine the standard cell potential (E°cell) of the reaction occurring in an electrochemical cell. To calculate for the standard cell potential, use the following equation:
When a balanced reaction is given, identify the anode and the cathode half-reactions by determining the changes in oxidation states of each species based on the given reaction:
A voltaic cell is constructed from
an Ni2 + (aq) - Ni(s) half-cell and
an Ag+ (aq) - Ag(s) half-cell.
The initial concentration of Ni2 + (aq) in the Ni2 + - Ni half-cell is [Ni2 + ] = 1.50×10−2 M . The initial cell voltage is +1.13 V .
By using data in Table 20.1 in the textbook, calculate the standard emf of this voltaic cell.
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