[BeYeu05]

is there a formula to calculating the average current that flows through an electrolytic cell using the following data:

1) change in [OH-] concentration
2) volume of the solution
3) time of the electrolysis

my numbers are:
1) 4.2e-3 M
2) 30 mL of KI solution (2.03 grams of KI(s) in 100 mL of water)
3) 18 minutes

I think it has something to do with figuring out the number of moles of the substance, from there the number of moles of electrons that flow through the current, and thus we have the charge. But should I approach the calculation?

To be honest I don't even know where to start.... Please *delete me*

[sdekivit]

yes you can calculate that, since 1 A is 1C/s.

if you calculate the amount of electrons that flows through the cells, you can calculate the charge that is transported using the constant of Faraday. This states that the transported charge for 1 mol electrons is 9,648 x 10^4 C

Then if you know the time the reaction takes place, you must divide the charge by the time to get the current that flows through the system.

Formula: I = Q/t.

But the first thing to do is make halfreactions, where you can see the electrontransport. So you need to know the molecules that you use in the cell.

[GCT]

isn't all of this explained perfectly in your text?