Here's a Question! - Mass of Burning Steel Wool

Рет қаралды 4,808

Жыл бұрын

Steel wool is placed in a beaker. The beaker is placed on a scale and the total mass is measured. Then, the paper is then set on fire. Once the fire burns itself out, the total mass is measured again. How will the masses compare?
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#combustion #chemicalchange #heresaquestion

Пікірлер: 22

@UnderCoverMetalHead 2 ай бұрын

Wow that actually threw me a curve ball! At 38 years old your never to old to learn something new! Nice video!

@JeffersonLab 2 ай бұрын

Thanks!

@syntaxusdogmata3333 Жыл бұрын

I did NOT see that one coming! Nicely done! 👍

@redfern_mike Жыл бұрын

After your burning paper video, this was an excellent followup. Keep up the educational posts :) This may have benefited with a chemistry equation

@JeffersonLab Жыл бұрын

Yeah, probably could have. For both of them.

@vadrif-draco Жыл бұрын

The burning looked pretty aesthetic

@Qermaq Жыл бұрын

0:39 love the stick figures :D

@abcpsc Жыл бұрын

Hi, could you please also show some theoretical calculations of expected mass change?

@davidmorse8432 Жыл бұрын

4Fe + 3O(sub 2) = 2Fe(sub2)O(sub3) One mole of iron is 55.85 grams. One mole of oxygen is 16 grams. You do the math.

@MathJfm Жыл бұрын

First one of these I got wrong, glad to learn something!

@lufetm Жыл бұрын

Well, I guessed it right but I didnt really know why, it just felt right

@davidmorse8432 Жыл бұрын

Is there no gas produced when steel goes thru the oxidation reaction? This experiment displays an interesting phenomenon that occurs when reinforcing bars rust inside hardened concrete. The resulting product, iron oxide, occupies more space than the reinforcing bar did before it began to oxidize and this causes the concrete to form cracks.

@JeffersonLab Жыл бұрын

Well, you can smell it when it burns, so it's not 100% contained.

@PoppyTau-yu8os 11 ай бұрын

What is your hypothesis

@stimproid Жыл бұрын

🔥🔥🔥🔥🔥🔥🔥

@PerspectiveEngineer Жыл бұрын

So the iron absorbs some oxygen molecules and becomes iron oxide and or rust and weighs more fascinating

@JeffersonLab Жыл бұрын

Yep, with part of the key being that the iron oxides, for the most part, aren't liberated from the structure like carbon dioxide or water vapor would be.

@sudhanshu2802 Жыл бұрын

Is steel wool just made of iron or something else too?

@JeffersonLab Жыл бұрын

If it's really steel, then it's iron with (likely) a little carbon and, perhaps, some other elements mixed in. There are a lot of different formulations for steel and I don't know the specific recipe used for generic steel wool. But, iron and carbon are safe assumptions.