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Home Q & A Board Science-Related Homework Help Physics
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Lexyz Lexyz
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11 years ago
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+
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#1
11 years ago
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
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