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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  1. 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.

  2. 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?

  3. 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)

  4. 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!

  5. 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

  6. 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.

  7. 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.

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