Question

Result/Conclusion:
The variation in cell potential with change in concentration of electrolyte at room​

Answer 1

▪️Reduction potential of an electrode increases with increase in concentration of the electrolyte.

Mn+(aq) + ne– ———-> M(s)

In the zinc-copper electrochemical cell zinc electrode acts as anode while copper electrode acts as cathode.

to-study-the-variation-of-cell-potential-in-zn-cu-cell-with-change-in-concentration-of-electrolytes-at-room-temperature-1

▪️One beaker, a porous pot, connecting wires, milli voltmeter, sand paper, zinc strip, copper strip, 1 M ZnS04 solution and 1 M CuS04 solution.

▪️Procedure

Take copper sulphate solution in a clean beaker.

Clean the copper strip with the help of sand paper and dip it into copper sulphate solution.

Take zinc sulphate solution in a porous pot.

Clean the zinc strip with the help of sand paper and dip it into zinc sulphate solution.

Keep the porous pot in the beaker.

Connect the copper strip with the positive terminal and zinc strip with the negative terminal of a voltmeter as shown in Fig.

Note the position of the pointer in the voltmeter and record the reading in your notebook.

Repeat the experiment by taking different concentrations of zinc sulphate and copper sulphate solutions.