Question 1:

What is the standard electrode potential of the standard hydrogen electrode (SHE)?

Explanation: The standard electrode potential of the standard hydrogen electrode (SHE) is 0.00 V by definition. It serves as the reference electrode for measuring other electrode potentials.

Question 2:

Which of the following factors affects the cell potential of an electrochemical cell?

Explanation: The cell potential of an electrochemical cell is affected by the concentration of the electrolyte, temperature, and pressure. Changes in these factors can alter the cell potential according to the Nernst equation.

Question 3:

Which of the following statements about the sign of the cell potential (E°cell) is correct?

Explanation: The sign of the cell potential (E°cell) depends on the half-cell reactions involved in the electrochemical cell. It can be positive, negative, or zero, depending on the relative standard electrode potentials of the half-cells.

Question 4:

What does a positive cell potential (E°cell) indicate?

Explanation: A positive cell potential (E°cell) indicates that the cell reaction is spontaneous. The higher the positive value, the more favorable the reaction.

Question 5:

What is the formula for calculating the cell potential (Ecell) of an electrochemical cell?

Explanation: The formula for calculating the cell potential (Ecell) of an electrochemical cell is Ecell = E°cell - 0.0592/n log(Q), where E°cell is the standard cell potential, n is the number of moles of electrons transferred, and Q is the reaction quotient.