Why don't both the Hydrogen and Oxygen gases flow into the same test tube? Does one only form on the positive lead of the battery and the other on the negative?
Yes, you'll still get hydrogen on one end, but instead of the oxygen gas on the other end you'll get chlorine gas which be reacting with water and the alkali medium producing some sort of mixture of everything but not oxygen.
I had a similar problem, a dirty green fluid on the cathode terminal, which I think was the oxygen and the metal reacting, forming an oxide. However, I do not know what material was the pin made of.
@ sciencefix When I did this I used bronze colored push pins and one gas was produced but the other terminal just produced dirty orange water. What kind of push pins should I use?
The thing is, I have to write a full report on Electrolysis as a waste water treatment, and still couldn't understand how would something like this happen. Thanks anyway
@sciencefix when a company says we disinfect water through electrolysis, how could this happen? I mean I know they have Cathode and Anode, but what is the medium, is it water or something else ?
How long does the battery last with this activity? I going to be doing this with my class and wondering if the battery is drained quickly and if I will need multiple batteries to show all my classes.
This is interesting. I was also thinking when you do electrolysis on water, is there a way to separate the h2o to try to collect hydronium and hydroxide ions?
more amps will provide a larger amount of hydrogen and oxygen gases. You have to make sure that you apply DC current only, otherwise if you do it with AC current you might shock yourself or even kill. I wouldn't recommend going over 15 amps plus do a good research before you start doing anything for your own safety.
It would be H2o assuming the two gasses were the same size molecules, but Hydrogen is a smaller molecule than oxygen so if twice as much gas was produced there could in reality be 4 hydrogen atoms for every 1 oxygen if the hydrogen was half the size. So I am the first to challenge this misconception of that there are only 2 hydrogen atoms for every 1 of oxygen as if you take 2 balloons and fill one with the oxygen gas and the other with the hydrogen and tie them off you will lose the hydrogen
but you're the one who is creating matter, because your equation isn't balanced. You have one oxygen on the left but 3 on the right . . . so apparently during the reaction you created one oxygen atom. Balance equation is: 2H2O --> 2H2 + O2 and you can see from this equation you have twice as many H's as O's
i made this uber complicated setup at home and then i see your battery and thumbtack setup nice job lol
You are welcome.
It's safe to do at home.
Why don't both the Hydrogen and Oxygen gases flow into the same test tube? Does one only form on the positive lead of the battery and the other on the negative?
Yes, you'll still get hydrogen on one end, but instead of the oxygen gas on the other end you'll get chlorine gas which be reacting with water and the alkali medium producing some sort of mixture of everything but not oxygen.
I had a similar problem, a dirty green fluid on the cathode terminal, which I think was the oxygen and the metal reacting, forming an oxide. However, I do not know what material was the pin made of.
@ sciencefix When I did this I used bronze colored push pins and one gas was produced but the other terminal just produced dirty orange water. What kind of push pins should I use?
why the test tube is not falling?
Thanks!
This is a great set-up! Thanks for sharing! :)
wait how did you get the beakers to like float over the water
Wouldn't NaCl (table salt) in aqueous state conduct electricity like baking soda?
if you use salt as an electrolyte you get chlorine gas as a byproduct, what do you get with baking soda?
when i electrolized water, the water turns cloudy.
what should i do? :/
i'm trying to purify D2O now, so please answer.
thanks :)
where do u get the spark plugs
The thing is, I have to write a full report on Electrolysis as a waste water treatment, and still couldn't understand how would something like this happen.
Thanks anyway
Yes.
so you put the test tubes over the pushpins on the water?
@sciencefix
so the - pol will makes fire dissapear right ?
and the plus pole makes the fire get bigger ?
wait how did you get the beakers to like float over the water
also where do u get those plugs with the clips at the end
so what would happen if you stick your finger in the water? shock?
@xXDalzalaXx you can. But I read that using NaCl, you create hazardous Chlorine gas, so it's best to use a salt that does not form a chlorine ion.
@sciencefix when a company says we disinfect water through electrolysis, how could this happen? I mean I know they have Cathode and Anode, but what is the medium, is it water or something else ?
It shall be the Hindenburg II. Make sure you keep any matches as far away as possible :)
They are Kimble Kimax Glass Disposable Culture Tubes. You can get them through Amazon or science supply companies like Ward or Fischer.
This is Done with a NaCl salt solution. You get Cl Gas that does the disinfecting.
This really helped me to understand electrolysis more! Thank you
0:56 a mistake.
You cant create more matter when you said H20 --> H2 + 02
You will get double much H then O. That is H2 and 0
Yes , water act as medium for that process.
I think I just used push pins that had a grey metallic color. I don't know what metal they were. Maybe brass will work as well.
How long does the battery last with this activity? I going to be doing this with my class and wondering if the battery is drained quickly and if I will need multiple batteries to show all my classes.
Good question. I do this for maybe 10 minutes. You can go longer. You probably want multiple backups.
with an NACl solution you also get Cl gas and NaOH solution.
The test tubes are sitting on small metal tacks that have been inserted into the plastic cup.
you guys helped me with this video for my science far project thanks :D
Thank you. I have to go try this now. :)
Good testable question. Would it drive the reaction at a faster rate?
That's so cool, I have to try the first one :P
Aprendi em colégio primário, fácil como b + a + Bah!! ;D
Re: my comment @artjoms pugacovs - oops I meant you have 1 O on the left, but 2 on the right in the unbalanced equation.
It would, but be aware of chlorine gas. I think potassium hydroxide is the best electrolyte and it's pretty cheap too.
This is interesting. I was also thinking when you do electrolysis on water, is there a way to separate the h2o to try to collect hydronium and hydroxide ions?
what happens if you provide the electrolyzis with higher voltage or amps?
Tensão 12v é segura, comece com um alimentador de celular...é seguro e funciona com dois talheres de aço inox mais sal na água!! ;D
why does mine won't get any bubble effect? please help
Did you trying mixing the water with baking soda something else that will increase the conductivity of the water?
You are welcome. Enjoy.
thanks!
That's and interesting question. I have never heard of that before.I don't understand how that would work.
where did you get the test tubes?
I think so.
thanks! this video was awsm!! helped me for tmorrws exam xD
The hydrogen flows to the negative lead and the oxygen flows to the positive lead.
more amps will provide a larger amount of hydrogen and oxygen gases. You have to make sure that you apply DC current only, otherwise if you do it with AC current you might shock yourself or even kill. I wouldn't recommend going over 15 amps plus do a good research before you start doing anything for your own safety.
It would be H2o assuming the two gasses were the same size molecules, but Hydrogen is a smaller molecule than oxygen so if twice as much gas was produced there could in reality be 4 hydrogen atoms for every 1 oxygen if the hydrogen was half the size. So I am the first to challenge this misconception of that there are only 2 hydrogen atoms for every 1 of oxygen as if you take 2 balloons and fill one with the oxygen gas and the other with the hydrogen and tie them off you will lose the hydrogen
but you're the one who is creating matter, because your equation isn't balanced. You have one oxygen on the left but 3 on the right . . . so apparently during the reaction you created one oxygen atom.
Balance equation is:
2H2O --> 2H2 + O2 and you can see from this equation you have twice as many H's as O's
Your finger would be ok.
I think so.