The Sci Guys: Science at Home – SE1 – EP1: Electrolysis of Water

Welcome to our first episode of The Sci guys. In this episode we will be investigating an experiment involving the electrolysis of water. We will show you how you can explore this topic at home with a few simple ingredients and household items.

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Equipment and Ingredients:
Kosher salt
9 volt battery
2 metal spoons
Glass Bowl or Container
Heavy rubber gloves
Safety goggles
Lab coat or apron

Next Episode: Sparklers Underwater –

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30 responses to “The Sci Guys: Science at Home – SE1 – EP1: Electrolysis of Water”

  1. Aaryan Dhakal Avatar

    how can we collect hydrogen and oxygen using this method

  2. Charndeep Bhangoo Avatar

    Hey Sci Guys, love the vid. Two questions: first, what do we change so that we get oxygen being produced on one spoon and hydrogen being produced on the other? Second, if we replace the spoons with strips of aluminum or nickel, will we still get a precipitate? Thanks in advance.

  3. Asmita Ghimire Avatar

    I don't get to know what's at anode side and cathode side in electrolysis of water.Help!

  4. iworkforme Avatar

    what is this product useful for?

  5. Nawnit Kumar Avatar

    Can we use up the Hydrogen and Chlorine gas after electrolysis of Sea water?

  6. Mohammed Bashir Avatar

    Is Electrolysis of NaCl same as of water…coz I want Electrolysis of NaCl in my exhibition would appreciate if u guys would help me out

  7. Enrico Santiago Avatar

    I have a question. there will be a product of sodium hydroxide aka lye in the electrolysis of salt water but what would happen if you use the sodium hydroxide solution produced earlier for electrolysis? and what would be the products if you use that sodium hydroxide?

  8. Mansoor Avatar

    What are the independent dependent and controlled variables

  9. Hedrix | Hardware Avatar

    dont use sodium chloride, this creates chlorine gas…

  10. christian marquez Avatar

    can we separate carbon and oxygen in carbon dioxide using electrolysis?

    Say we dilute CO2 in water, then perform the same procedure from this video,. would it work?

  11. John Doe Avatar

    When you put rusty objects in vinagre, you also get H2? Or/and something else?

  12. Thomas Otto Avatar

    Is there another electrolyte which is not salt that would allow for the oxygen and the hydrogen to be left alone to themselves? What I mean is that I'd just like to collect the hydrogen and the oxygen in their pure elements, nothing else. (doing this for a mars colonisation project)

  13. nity purna Avatar

    can u give me the relationship between voltage current and amount of hydrogen gas produced and also relationship between electrical energy consumption

  14. nity purna Avatar

    I want to produce only hydrogen gas and oxygen gas so what kinds of electrolyte's r good and for this what kinds of electrode is good

  15. Felicity Yuan Avatar

    Question: I'm now conducting an experiment that studies exactaly what concentration of NaCl will cause the production of chlorine gas. I used graphene electrode in order to avoid unknown products. However, the cathode starts producing greenish precipitate after the NaCl concentration exceeds 3M. I'm wondering if that's related to chlorine gas, but I get pretty confused, becuase 1. chlorine gas should be produced in the form of GAS not precipitate 2. Chlorine gas should be produced at the anode.

    Please help me out! Thanks guys!

  16. Exotic Butters Avatar

    You could use bakeing soda instead of salt. With baking soda there is way less corrosion and less acid

  17. Janardhanan Iyer Avatar

    the science guys is really useful and i want to know that water boils

  18. Rafiat Bin Morshed Avatar

    Is the salt NaCl you used in your experiment in the daily eating salt?

  19. scotyluxo15 Avatar

    wish i had seen this before submitting my chem assignment – i completely missed the sodiumhydroxide bit of electrolysis… uh oh

  20. Reinhart Magdaong Avatar

    How can you exactly measure the gases produced in electrolysis of water?

  21. Muzik Bike - Geometry Dash and stuff Avatar

    I'm assuming the spoons are stainless steel?

    If so, the oxide might be a chromium compound of some sort

  22. SAJID AHMED Avatar

    where did the sodium go? I don't understand

  23. umair iqbal Avatar

    Isn't chlorine gas green in colour so is that green colour of chlorine gas escaping?

  24. Ashish Rajput Avatar

    i want to know that is there any role of heating effect of current

  25. harun razak Avatar

    Not to confuse anybody.. but water is a covalent bond and in a textbook it says that if you pass an electric current through an IONIC substance. It breaks down the elements it's made of. Called electrolysis

  26. Emily Avatar

    i dont think u really need to do that. lye is drain cleaner anyways

  27. Garen Zamba Avatar

    I'm not a scientist but I know that your confusing the people. Hydrogen is supposed to be represented as an white colored Atom. AnD Oxygen is supposed to be represented red.

  28. CLGdoesGaming Avatar

    Hey how ya doin?

  29. Maynard Peterson Avatar

    The way I understand it is that salt acts as a catalyst for the reaction and catalysts are not consumed in chemical reactions. additionally bases and acids react with each other and when you poured the vinegar into the base I didn't see a reaction. I'm not saying your wrong with how the molecules rearranged themselves I just want clarification.

  30. Shyam Sunder Avatar

    Can you please make another video explaining how to collect the H2 and Cl2 gases produced during electrolysis?

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