Problem: Using standard reduction potentials (Appendix E in the textbook), calculate the standard emf for each of the following reactions.2NO3-  (aq) + 8H+(aq) + 3Cu(s)  →  2NO(g) + 4H2O(l) + 3Cu2 +  (aq).

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We’re being asked to determine the standard cell potential (E°cellof the reaction occurring in an electrochemical cell. To calculate for the standard cell potential, use the following equation:

EOcell = EO cathode - EOanode


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:

Recall:

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Problem Details

Using standard reduction potentials (Appendix E in the textbook), calculate the standard emf for each of the following reactions.

2NO3-  (aq) + 8H+(aq) + 3Cu(s)  →  2NO(g) + 4H2O(l) + 3Cu2 +  (aq).

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