Standard Electrode Potentials
Chemistry ⇒ Redox Reactions and Electrochemistry
Standard Electrode Potentials starts at 11 and continues till grade 12.
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A cell is constructed with the following half-cells: Ag+/Ag (E° = +0.80 V) and Cu2+/Cu (E° = +0.34 V). Which electrode will act as the anode?
Arrange the following in order of increasing standard electrode potential: Fe2+/Fe (-0.44 V), Cu2+/Cu (+0.34 V), Zn2+/Zn (-0.76 V).
Describe how the electrochemical series is constructed using standard electrode potentials.
Describe how the standard electrode potential of a half-cell changes if the concentration of ions is increased above 1 M.
A cell is constructed with the following half-cells: Ag+/Ag (E° = +0.80 V) and Cu2+/Cu (E° = +0.34 V). Which electrode will act as the anode?
Calculate the standard cell potential for a cell made of Fe2+/Fe (E° = -0.44 V) and Ag+/Ag (E° = +0.80 V).
Calculate the standard cell potential for the following cell: Mg(s) | Mg2+ (1 M) || Cu2+ (1 M) | Cu(s), given E°(Mg2+/Mg) = -2.37 V and E°(Cu2+/Cu) = +0.34 V.
Fill in the blank: The standard electrode potential of a cell is calculated as E°cell = E°cathode - E°anode. If E°cathode = 0.80 V and E°anode = -0.44 V, then E°cell = ______ V.
Which of the following half-cells will act as a cathode when paired with the standard hydrogen electrode? (1) Zn2+/Zn (E° = -0.76 V) (2) Cu2+/Cu (E° = +0.34 V) (3) Fe2+/Fe (E° = -0.44 V) (4) Pb2+/Pb (E° = -0.13 V)
Which of the following is NOT a standard condition for measuring electrode potentials? (1) 1 M ion concentration (2) 1 atm gas pressure (3) 0°C temperature (4) Pure solids or liquids as electrodes
Which of the following is the correct cell notation for a cell made from Zn and Cu electrodes? (1) Zn | Zn2+ || Cu2+ | Cu (2) Cu | Cu2+ || Zn2+ | Zn (3) Zn2+ | Zn || Cu2+ | Cu (4) Cu2+ | Cu || Zn2+ | Zn
Which of the following is used as the reference electrode for measuring standard electrode potentials? (1) Calomel electrode (2) Standard hydrogen electrode (3) Silver-silver chloride electrode (4) Glass electrode
Fill in the blank: The standard electrode potential for the half-cell reaction Mn+ + ne- → M is called the standard ________ potential.
Fill in the blank: The standard electrode potential is measured under standard conditions, which include a temperature of ______ °C.
Fill in the blank: The standard electrode potential of a cell is calculated as E°cell = E°cathode - E°anode. If E°cathode = 0.80 V and E°anode = -0.44 V, then E°cell = ______ V.
Fill in the blank: The standard electrode potential of a cell is positive if the reaction is ______ under standard conditions.
True or False: A positive standard electrode potential means the species is a good oxidizing agent.
True or False: The more positive the standard electrode potential, the stronger the oxidizing agent.
True or False: The standard electrode potential of a cell can be used to calculate the equilibrium constant for the cell reaction.
True or False: The standard electrode potential of a cell is the sum of the standard electrode potentials of the two half-cells.
