Copper voltameter, to determine the electro chemical equivalent of copper, physics practical std 11 & 12

Copper voltameter

Copper voltameter

AIM :-

Connect given copper voltameter in an appropriate circuit determine the electro chemical equivalent of copper.

PRINCIPLE :-

On passing electric current through CuSO₄ solution, Cu⁺² and SO^-2₄ ions are separated or chemical effect of electric current.

PRECAUTIONS

The cathode plate should be throughly cleaned after rubbing with sand paper.

Pass only that much current as is obtained from the calculation of the area of the immersed part of the cathode plate.

Use only a fresh solution of CuSo₄. To prepare the solution dissolve about 25 g of CuSO₄ crystals in 100 cm³ water. Add a few drops of sulphuric acid (H₂SO₄) to make it more conducting.

Hold the plate from its upper end so as to avoid touching its surface.

Cathode plate should be washed immediately after it is taken out of the solution.

PROCEDURE :-

1. To Cathode plate  dip in clean water, and wash off all the CuSO₄, solution sticking to it. Thereafter wash it again with tap water.

2. Hold it in the sunshine for some time till it dries out. Now find out its mass by Physical balance.

Anode, Cathod, Sulphuric, Copper, voltameter, 

Electric, Solution, Water, 

Copper voltameter apparatus 

Copper voltameter line diagram 

Copper voltameter practical

Copper voltameter practical result

Table of Copper voltameter result

Calculation of copper voltameter

For more details View Video.

Copper voltameter.