Hi,
I have a chemistry question on quantitaive electrolysis which I worked out, but I was told by someone it was wrong. I would like to know where and if I went wrong

"The half-reaction for formation of magnesium metal iupon the elctrolysis of motlen MgCL2 is

Mg(2+) + 2e- =Mg

How many seconds does it take to make 25.0g of MG if the current is 50 amps?"

So i work out the moles of Mg:
25/12=2.1

I then work out that since there are 2e- for 1 Mg(2+), there is half the amount of moles for 1 e-:
2.1/2=1.05

I then use faradays constant to work out the amount of charge:
1.05 x 96000=100,000

I then divide it by the current to work out the time:
100,000/50=2000

so the time is 2000 seconds (approximately)

can anyone tell me if and where I have gone wrong (and no, its not by a couple of digits due to rounding, I was told I was off bye a good 2000 seconds)

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