Question

Consider an electrochemical cell where the negative electrode is sodium (Na) and the positive electrode is copper (Cu). What would be the standard potential of this cell? (Enter two digits to the right of the decimal point.)

Answer 1

Answer:

galvanic cells,also known as voltaic cells

Answer 2

Answer: The standard potential of this cell is -2.37.

Explanation:

• The potential of the half-cell or half-reaction measured against the reference hydrogen electrode under reference conditions is the standard electrode potential for that half-cell or half-reaction.
• Voltaic or galvanic cells are electrochemical devices that produce electricity through spontaneous oxidation-reduction processes.
• In order to balance the overall equation and highlight the actual chemical transformations, it is frequently beneficial to divide the oxidation-reduction reactions into half-reactions while constructing the equations.

• If E°cell has a positive value, the reaction will happen naturally and exactly as it is described. The reaction will not occur as indicated under normal conditions if the value of E°cell is negative; instead, it will take place spontaneously in the opposite direction.

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