Quick Gen Chem Question

[Nawit]

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Hey guys. I was reviewing Chad's Gen chem outline that I scribbled notes all over. For quantitative calculations of electrolysis, I know the formula is ((Amps)x(Ts))/(👎x(F). However, for some reason I wrote down that 10 AMPS = 10C/ sec and in my following calculations I would multiple the numerator by an extra 10. I am not sure if this is necessary or correct. Could anyone help me with this?

I would check the videos myself but my subscription ran out and my test is in 6 days so I don't feel like shelling out the money unless is absolutely necessary.

Any help would be appreciated. 🙂

 

[Jay20155555]

General rule: 1 Amp = 1 Coulomb/second

soooo 10 Amps = 10 C/sec

you can use this when given I which is the current that is in Amps to calculate the number of moles of atom. The example he gave was I = 10 Amps for 1.5 hours. How many moles of Na were produced for the molten electrolysis of NaBr.

So we have 10 Amps = 10 C/sec, we have to multiply this 10 by the number of seconds to get Coulombs, then you divide by Faradays constant (96,500) to get the moles of electrons aka moles of Na.

ORRRRR you could just skip all this and memorize the equation he gives lol

 

[Nawit]

I'm sorry if this is a dumb question, but what exactly is I in this example? Because I just noticed I have that written down but I have no clue what it is... 🙁

 

[Lnguyen7]

I = current

 

[Jay20155555]

yup what @Lnguyen7 said, and its units are in Amps

 

[Nawit]

Got it thanks.