but I want to take this chance to ask something different - Simple Chemical Cell (Not electrolysis) If I put two metal strip , let say one is Magnesium and one is Copper and then I use NaCl (aq or liquid case) or Magnesium Sulphate. What reaction will happen at the electrode? I really don't understand who receive the electrons if Magnesium gives up the electrons. (Sorry to repeat that I am NOT talking about electrolysis) Thanks!
Thank you to viewers who have picked up a few errors in this video, particularly at 1.11 where the word cathode should replace the word anode!
This is a little video I put together really quickly for my Chemistry class (18 students!) and I never really expected that 16,000 people would end up watching it.
I intend to do a new version of this video the next time I teach this concept ....... and this time I'll write a script and ensure it's error free. :-)
@warnantp yay finally found a vid that uses the chart, im 16 and do like doing electrolysis, ive seen the chart b4 and read abt some thing on the internet but wasnt ever clear abt what happens, and how the chart is used ( ive made NaOH and chlorine, used it for copper and zinc plating, making copper and iron hydroxide, and even tryed molten KCl without realising that the K would burn instantly XD )
id be really cool if u can make a vid that starts a bit more towards the basics!! :)
Sodium doesn't get reduced?. How come you can isolate sodium from a sodium chloride solution by passing an electric current through, using a mercury cathode, and an inert anode (2:54). This has been industrially.
We are hopefully reading it from left to right(3:07)
there are two types of ions : anions (going to anode) and cations (going to cathode). some elements (such as H) can form both types of ions: anions and kations. I say this because of sandy text on drawing at 5'30
NaCL can form Na in water, but not metalic form. instead it forms NaOH. in order to produce clean Na in water you would have to separate cathode from water with denseer (than water) thin layer of liquid or half-membrane. either methods are uneconomical compared to metling NaCl
You are right, copper iodide was probably not the best example to choose. CuI2 is not stable and forms CuI which is insoluble. Hopefully the video is still useful in terms of teaching students how to use the standard electrode potentials to predict the products of electrolysis reactions.
Thanks for the work on the video! Nice video!
but I want to take this chance to ask something different - Simple Chemical Cell (Not electrolysis) If I put two metal strip , let say one is Magnesium and one is Copper and then I use NaCl (aq or liquid case) or Magnesium Sulphate. What reaction will happen at the electrode? I really don't understand who receive the electrons if Magnesium gives up the electrons. (Sorry to repeat that I am NOT talking about electrolysis) Thanks!
elec03 9 months ago
thanx....hELpD A LOt........<3
bluffmastermasoom 10 months ago
wish my teacher could make my class a video like this, thank you very much.
solakaboy 1 year ago
please explain the mechanism in nelson cell for the electrolysis of NaCl
meene 1 year ago
Thank you to viewers who have picked up a few errors in this video, particularly at 1.11 where the word cathode should replace the word anode!
This is a little video I put together really quickly for my Chemistry class (18 students!) and I never really expected that 16,000 people would end up watching it.
I intend to do a new version of this video the next time I teach this concept ....... and this time I'll write a script and ensure it's error free. :-)
warnantp 1 year ago 3
@warnantp yay finally found a vid that uses the chart, im 16 and do like doing electrolysis, ive seen the chart b4 and read abt some thing on the internet but wasnt ever clear abt what happens, and how the chart is used ( ive made NaOH and chlorine, used it for copper and zinc plating, making copper and iron hydroxide, and even tryed molten KCl without realising that the K would burn instantly XD )
id be really cool if u can make a vid that starts a bit more towards the basics!! :)
hobomnky 1 year ago
The cathode, you mean the anode (1:15)
Sodium doesn't get reduced?. How come you can isolate sodium from a sodium chloride solution by passing an electric current through, using a mercury cathode, and an inert anode (2:54). This has been industrially.
We are hopefully reading it from left to right(3:07)
Komanivysijc 1 year ago
Reduction of copper happens yes but this is at the cathode (1:11)
Nothing gets oxidised at the cathode. Oxidation happens at the anode (1:18)
Komanivysijc 1 year ago
there are two types of ions : anions (going to anode) and cations (going to cathode). some elements (such as H) can form both types of ions: anions and kations. I say this because of sandy text on drawing at 5'30
Thorsupremecommander 1 year ago
small amandment :)
NaCL can form Na in water, but not metalic form. instead it forms NaOH. in order to produce clean Na in water you would have to separate cathode from water with denseer (than water) thin layer of liquid or half-membrane. either methods are uneconomical compared to metling NaCl
Thorsupremecommander 1 year ago
really quiet easy to understand
coffeedj1234 2 years ago
hey this is good :)
where do u come from??
rcloveable 2 years ago
Nice!
Thanks youve helped me with my GCSE study
ProReligion 2 years ago 5
Solution of copper iodide is not a very good example. The compounds hardly dissolves in water!
kaviaari 3 years ago
You are right, copper iodide was probably not the best example to choose. CuI2 is not stable and forms CuI which is insoluble. Hopefully the video is still useful in terms of teaching students how to use the standard electrode potentials to predict the products of electrolysis reactions.
warnantp 3 years ago
hi, really good explination and yes it helps me out thanks teach, where can i download a copy of this table if you got time, thanks again.
thom scotland.
NEON271156 3 years ago 4
nice explanation
ggabnore 3 years ago