Question

Indicate what happens to the concentration of Pb2+ in each half cell
a) the left half-cell will increase in concentration; and the right half-cell will decrease in concentration.
b) the left half-cell will increase in concentration; and the right half-cell will increase in concentration.
c) the left half-cell will decrease in concentration; and the right half-cell will decrease in concentration.
d) the left half-cell will decrease in concentration; and the right half-cell wil

Answer 1

Answer:

Your questions requires diagrams of the cell to get which one is on the left or right. However, see the attached file below

The correct answer is (d) the left half-cell will decrease in concentration; and the right half-cell will increase in concentration.

Explanation:

The concentration of the Pb2+ increases in the oxidation half cell while the concentration of the Pb2+ decreases in the reduction half cell during the reaction.

In the Left Beaker (Left half cell), their is less concentration

Pb(s) ---> Pb2+(aq) + 2 e- Concentration of Pb2+(aq) increase ; Electrons going out from this side

In the Right Beaker (right half cell), their is more concentration

Pb2+(aq) + 2 e- ---> Pb(s) Concentration of Pb2+(aq) decrease ; Electrons coming in to this side

Electrons will flow from Left to Right direction.