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Title: How do you calculate theoretical weight gain and loss of copper electrodes in electrolysis? Post by: Lexyz on Sep 5, 2012 I did an experiment where the beginning weights of two copper electrodes were 2.5756 grams and 2.0776 grams. I ran the electrolysis at 44.8 amps for 45 minutes, and now I'm supposed to find the theoretical weight gain/loss?
The oxidation state of the Cu was 2+ Title: How do you calculate theoretical weight gain and loss of copper electrodes in electrolysis? Post by: lexxus33612 on Sep 5, 2012 1 Amp = 1 coulomb/second
So you can calculate how many coulombs went through it 96485 coulombs = 1 mole of electrons so you can figure out how many moles of electrons went through it. But you will need to know what oxidation state the Cu had [I think Cu goes +1 or +2] as the mass plated rather depends on that |