Draw an electrolytic cell in which Mn²⁺ is reduced ...

Question

Draw an electrolytic cell in which Mn²⁺ is reduced to Mn and Sn is oxidized to Sn²⁺. Label the anode and cathode, indicate the direction of electron flow, and write an equation for the half-reaction occurring at each electrode. What minimum voltage is necessary to drive the reaction?

Accepted Answer

Step 1: Draw a container divided into two halves. In one half, place a Mn electrode immersed in a Mn2+ solution. In the other half, place a Sn electrode immersed in a Sn2+ solution. Connect the two electrodes with a wire and a battery. This is your basic setup for an electrolytic cell.. Step 2: Label the electrode where oxidation occurs as the anode. In this case, Sn is oxidized to Sn2+, so the Sn electrode is the anode. Write the half-reaction for this process: Sn -\u003e Sn2+ + 2e-.. Step 3: Label the electrode where reduction occurs as the cathode. In this case, Mn2+ is reduced to Mn, so the Mn electrode is the cathode. Write the half-reaction for this process: Mn2+ + 2e- -\u003e Mn.. Step 4: Indicate the direction of electron flow. In an electrolytic cell, electrons flow from the anode to the cathode through the wire. So, draw an arrow on the wire pointing from the Sn electrode to the Mn electrode.. Step 5: To find the minimum voltage necessary to drive the reaction, look up the standard reduction potentials for the two half-reactions. The voltage needed is the difference between the two potentials. Remember that in an electrolytic cell, the reaction is non-spontaneous, so the cell potential will be negative. The minimum voltage needed to drive the reaction is the absolute value of the cell potential.

Draw an electrolytic cell in which Mn²⁺ is reduced to Mn and Sn is oxidized to Sn²⁺. Label the anode and cathode, indicate the direction of electron flow, and write an equation for the half-reaction occurring at each electrode. What minimum voltage is necessary to drive the reaction?

Key Concepts

Electrolytic Cell

Half-Reactions

Minimum Voltage (Electrolysis)

Draw an electrolytic cell in which Mn2+ is reduced to Mn and Sn is oxidized to Sn2+. Label the anode and cathode, indicate the direction of electron flow, and write an equation for the half-reaction occurring at each electrode. What minimum voltage is necessary to drive the reaction?

Key Concepts

Electrolytic Cell

Half-Reactions

Minimum Voltage (Electrolysis)

Draw an electrolytic cell in which Mn²⁺ is reduced to Mn and Sn is oxidized to Sn²⁺. Label the anode and cathode, indicate the direction of electron flow, and write an equation for the half-reaction occurring at each electrode. What minimum voltage is necessary to drive the reaction?