Question

describe the importance of increase in the weight of cathode​

Answer 1

Explanation:

1) to make sure no impurities obstruct the coating of the cathode with the metal i.e to obtain only pure metal at the cathode

2) the zinc /copper connected at the anode lose electrons, turning into ions and move into the solution

3) that's a bit unclear..but I'm guessing you mean deposit at the cathode. So with increase in time, the deposit at the cathode increases as well

4) importance? I guess - if the weight doesn't increase that means the substance at the anode either has no copper/metal to ionise or somethings wrong so that the ions are not discharged at the cathode.

Answer 2

Explanation:

The electrode at which reduction occurs is called the cathode . The cathode gradually increases in mass because of the production of copper metal. The concentration of copper(II) ions in the half-cell solution decreases. ... Ions move through the membrane to maintain electrical neutrality in the cell.