I'm doing an assignment on the electrolysis of copper. does the copper cathode electrode gain or lose mass during this process? or is it the opposite?
-
At the cathode, reduction is going on. This means that aqueous copper (Cu+2(aq)) is going to solid copper (Cu(s)). When it transforms to solid copper, it gets plated on the copper plate, therefore the cathode end of an electrolysis reaction gains mass.
-
During electrolysis the cathode gains mass.oxidation occurs at anode and reduction at cathode.So at the cathode Cu2+ ions get converted to Cu which gets deposited at cathode.so cathode gains mass
-
The cathode is where reduction occurs in the half cell. This means that aqueous metal ions are being reduced to the solid state at the cathode, therefore it gains mass.