products in electrolysis? (1 Viewer)

[Kroi]

how do you determine the products in an electrolysis.

do you:
find the possible reduction and oxidation reactions, then choose the most !b!positive!/b!
E0 potential?
or find the possible redox and then pick the ones closest to zero potential thus finding the products formed using the minimum amount of voltage?

cheers


*edit, yea made a mistake in original type serge XD

 

[serge]

how do you determine the products in an electrolysis.

do you:
find the possible reduction and oxidation reactions, then choose the most possible E0 potential?
or find the possible redox and then pick the ones closest to zero potential thus finding the products formed using the minimum amount of voltage?

cheers

some things will never electrolyse, but ur on the right track
NaCl for instance has to be molten for Na metal to form
and chlorine gas will be formed in a concentrated solution
(but i dont really know the numbers needed in molarity)

 

[Kroi]

thanks serge.... but was it A or B of my answer that was correct?

 

[serge]

thanks serge.... but was it A or B of my answer that was correct?

arent they the same?

either way, if you shove a high enough voltage in you can get all sorts of stuff to happen

 

[Ghost1788]

wat r the formulae for this again....

q=it

q=?

i = current
t=time

 

[serge]

wat r the formulae for this again....

q=it

q=?

i = current
t=time

thats out of the syllabus