How do we know that water is H2O?
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- เผยแพร่เมื่อ 10 ก.ย. 2024
- Electrolysis of water is performed using a mini-Hoffman Apparatus purchased from arborsci.com.
3M NaOH solution is used so that the water is able to conduct electricity.
Two gases are produced, measured in volume and then tested using the splint flame test to determine that there are 2 parts hydrogen for every 1 part oxygen produced from water.
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Notice also at 01:44 that when the test tube is pulled from the surface a white residue or cloud spills out from the test tube. It's clear this doesn't come from the water but either the electrolyte or the electrode. It's clear something is breaking down and it's not the water! So either the electrolyte and/or the electrodes breakdown to release hydrogen!
something added to the water for sure. scientific lies.
NaOH is not affecting the amount of gasses.
2 NaOH ---> 2 Na + O2 + H2
2 Na + H2O ---> 2 NaOH + 2 H2 + O2
2 H2O ---> 2 H2 + O2
As you can see, the NaOH isn't used up, it's still NaOH in the end, and it generates the same amount of hydrogen and oxygen as water would so NaOH is like a catalyst, speeds up the reaction, but not used up or reacting itself.
Cool story bro
are you lying to yourself or me?
doesnt matter because the result is the same. there are plenty of other methods you can find the composition of water including some stupid easy stuff you can do at home. put some grain alcohol in a jar lid, light it and hold a cold glass over the flame for a second, theres condensation. thats water because alcohol is C2H5OH (which has been proven for centuries even) and when it burns the carbon forms carbon dioxide with air oxygen and the hydrogen reacts as well to form H2O. you can can taste the condensation and there are also other more accurate methods to prove it is water. you dont necessarily need the sodium hydroxide anyways.
get some water, put a 9v battery in and just wait, you'll eventually see bubbling which if you collect the gas then burn it it has the characteristic "bang" of hydrogen burning
i can prove it to you by another method which doesn't use water in the first place. video will be out today if i bother to follow through
@@EdwardTriesToScience water is not h2o that's my point
So the number after the letter means there's that much more than the letter after it? (Twice as much hydrogen than oxygen.)
Dear commenters, the hydroxide is NOT being broken down, when it does, it just regenerates itself, stop saying it's the hydroxide! Water is not conductive enough at 9 volts, so you add an inert electrolys such as sodium hydroxide. If you dont belive that water is H2O, do this experiment, but use a 100 vdc power supply
Chemical formula for sodium hydroxide is NaOH. Published data may refer to it instead of the anhydrous compound, meaning without water. So tell me Edward, what does the O and H refer to in its chemcial formula? Er........O for Oxygen and H for Hydrogen, so it's clear the anhydrous form of Sodium Hydroxide doesn't contain water but does contain oxygen and hydrogen, so it's no wonder hydrogen and oxygen are released at the respective electrodes during the electrolytic process. Furthermore if you think the electrolyte plays no part in the gas production during electrolytic process, when one uses NaCl, chlorine is produced at the anode and this cannot come from the water. Sodium Hydroxide is NOT inert as it's put through a series of manufacturing processes. It's actually extremely caustic and releases heat when placed in water. This is because the water is breaking the compound down to release it's constituents. If you actually think about it, because Sodium Hydroxide contains NO water it is understandable why it is so hygroscopic - sodium just loves water!!! Sodium metal loves water that much, man has to store it in oil!!!!! There's NO hydrogen and oxygen in water. Your science doesn't reflect the natural world at all!!!
How does the weight of the solution in the container change after the electricity is applied? Did you measure weight? How does it change in relation to kWh applied? It's interesting that the use of lye makes this is the opposite of the choir alkali process. But I have to admit, I'm a bit of a skeptic about water breaking down into H & O.
You can weigh the initial/final mass or estimate based on mL of H2 + O2 gases produced with pV=nRT, when you find n (mols) you'll know the mass of H2O converted
Nice - have you tried this with NaCl?
Yes, but it makes some chlorine gas which is slightly soluble in water and distorts the ratio
@@APphyzicks so what did you add?
ritter in the 19th century thought this was a synthesis, water combining with negative and positive electricity. why wouldn’t that explanation work?
Why that happened. It is not supposed to the oxygen to be more then hydrogen ( h2o ) 🤔
It's Hx2 + O, not H + 2xO
How do we know Gas is Hydrogen ?
Did u hear the pop sound in 3:00? If there’s a pop sound when u put a burning splint in the tube,then it’s H2
Water is H2O and 2 molecules of water dissociate to H2 and two O2. We have only H2 in one tube (two O2 still exist in water and not a gas?) and we have two O2 only in another tube (H2 not a gas and dissolved in water?). But how is it possible?
This is a great question. At one terminal the H2O is turning into H2 gas and also OH-. At the other terminal H2O is turning into O2 and H+ ions. Electrons are going into the terminal that forms H2 and electrons are leaving the terminal that has O2 forming. You can see evidence at 2:35 in this video where I run electrolysis with universal indicator present to show the pH changes. th-cam.com/video/BRep90S331E/w-d-xo.html
@@APphyzicks Selective answering, shows your integrity and a fundemental flaw in your methodology. Any scientist at any level, worth his salt, invites any challenge made against his work. It is these challenges that either fortify or weaken the conclusion. And you wonder why we don't trust "science" anymore.
It's better to understand what happens in the demo by considering water to not comprise hydrogen and oxygen and the gas products originate from the NaOH and/or the electrodes! Water will always breakdown whatever material is in it and add some electricity, the rate of decomposition will increase! Regardless, better questions to ask could be, why do gas products come about in the first place? What causes bubbles to form at the electrodes? if one studies the electrodes carefully, bubbles seem to ooze out from the electrodes! interesting stuff!
this is not simple water. it has salt added in it. and what are the electrodes made of? this video is deceitful.
What's the experiment going on here?
I invite all sceptics to read chapter 2 of The principles of chemistry Volume 1 by Dmitry Ivanovich Mendeleyev. He clearly asks in that chapter if water is an element or a compound substance. He then proceeds to explain which experiments prove that it is a compound substance. One of those experiments is the one shown in this video!
But the experiment above doesn't prove water is a compound substance because in the experiment above the gases could actually come from the electrodes and/or electrolyte!!!
Wow :O
wow thats so cool
like if you agree
the basic:
the H stands for hydrogen and the O stands for oxygen
*this is very basic please don’t read this*