Really nice, really helps to clarify the simple and elegant manner that Lavoisier conducted his experiments to prove such an important and revolutionary principle as the Principle of Conservation of Matter, the angular stone of Modern and Contemporary chemistry.
And here ends my rabbit-hole of why oxygen is called oxygen, sparked by a label in a hospital that said ‘Oxygen / Suurstof’ (All the other videos explained that Lavoisier named it Oxygen, but not why). Thank you, uploader. And here begins my rabbit-hole into the origins of alchemy…
14:03 Actually I think The Law of Conservation of matter should be called The Law of Augmentation of Matter because after the heating of the Calx of mercury we gain “fresh air” and mercury 😊
Discovery of the substance all around us and vital for life. Yet invisible till Priestly used scientific and chemical means to work it with out. Amazing.
Jar Mercury level raised because while heating disc mercury oxygen was taken from jar which reduces the volume of air in jar and allowed the level of mercury to rise . THIS PROVES THAT DURING COMBUSTION AIR (OXYGEN) IS NEEDED.
Some parts of the phlogiston theory still holds true today. The only reason why the rust is heavier, is the presence of the water that is breaking the metal down thus increasing the iron's weight. Nothing to do with oxygen.
@@grebe2332 ok your next task in your chemistry lesson is to recover the oxygen from rust! Then you can prove oxygen is present in rust! Should be easy for you to do so off you pop and make it your 2020 goal!
@@PeterPete oxygen being a component of iron rust does not imply that its easily separable, but i digress. i looked at your channel, and ill address your theory directly. the fact that oxygen doesn't react with iron directly, or more generally that any element and any other element dont react with each other directly, is not evidence that a compound can't exist containing both; assuming so would ignore spectator ions and catalysts, which are often needed to produce compounds or speed up reactions without actually being present in the product. the reaction that produces rust from water and iron is a redox reaction, one spurred by the movement of charges. neutral iron breaks down because its metallic bonds are held together by electrons. intuitively, the movement of these electrons away from the iron should weaken the bonds so as to allow a reaction to take place. hydrogen, going from a positive oxidation state in water to a neutral oxidation state in hydrogen gas, readily takes these electrons and favors the reaction. if your next question is something along the lines of "if hydrogen in water serves this purpose, why doesn't this reaction occur in air, which is purported to contain both oxygen and hydrogen as individual gases?" note two things: firstly, that the hydrogen content of the air is minuscule secondly, that gaseous hydrogen has a neutral oxidation state, and thus does not need to take electrons to become stable. i can't separate oxygen from rust myself, as it takes a pretty significant amount of heat to do so, but the idea is hardly new. its the entire principle behind smelting iron ore. takes carbon (coke) and ore, produces carbon dioxide and iron.
@@grebe2332 Quote - i can't separate oxygen from rust myself So how do I, or anybody else come to that, know that oxygen is in rust if nobody can show it.
One of the best use of 15:09 minutes of my life.
Thanks.
A shame no videos as good as these old ones are produced about the history of Chemistry...
Really nice, really helps to clarify the simple and elegant manner that Lavoisier conducted his experiments to prove such an important and revolutionary principle as the Principle of Conservation of Matter, the angular stone of Modern and Contemporary chemistry.
This is why we say old is gold👑🥇🏅📜
And here ends my rabbit-hole of why oxygen is called oxygen, sparked by a label in a hospital that said ‘Oxygen / Suurstof’ (All the other videos explained that Lavoisier named it Oxygen, but not why). Thank you, uploader.
And here begins my rabbit-hole into the origins of alchemy…
It's really good to see a film like this. The experiments done by lavoisier was shown to us with details.
Love the period clothes, instruments, techniques and such.
Very nice use of traditional scientific instruments!
amazing! what a beautiful explanation, very well presented.... wow amazing ❤️😍
14:03 Actually I think The Law of Conservation of matter should be called The Law of Augmentation of Matter because after the heating of the Calx of mercury we gain “fresh air” and mercury 😊
So if we take rust and heat it with the magnifying lens we should obtain iron!
If oxygen was discovered in 1774, how did they breathe before 1774?🤨
Air
Keyword is discovered not created. People have always had oxygen they just didn’t know it until 1774.
@@TheWoodland12 He was obviously joking XD
Oxygen was synthesized not discovered!
It's a man made gas, we don't breathe oxygen! We breathe air!
@@TheOne10525 you missed the joke
Discovery of the substance all around us and vital for life. Yet invisible till Priestly used scientific and chemical means to work it with out. Amazing.
That was super helpful
Good for learners
THANKS !
Thanks for posting , nice to see a film like this .
How mercury level raised, min. 07:53?
Jar Mercury level raised because while heating disc mercury oxygen was taken from jar which reduces the volume of air in jar and allowed the level of mercury to rise .
THIS PROVES THAT DURING COMBUSTION AIR (OXYGEN) IS NEEDED.
People before 1774:
Beautiful
My mom would say he should'nt be playing with mercury.
Open mercury. Mad !
Why'd he pull a mouse out tho
Good video
Not soo good
I hate my chem teacher
nice video
hello ounde pupil bored and looking in comments
I like the Phlogiston theory to be the title of this video.
Some parts of the phlogiston theory still holds true today. The only reason why the rust is heavier, is the presence of the water that is breaking the metal down thus increasing the iron's weight. Nothing to do with oxygen.
@@PeterPete lol. rust is metal oxides. the oxygen is stolen from the water, which is dihydrogen monoxide. it has everything to do with oxygen :p
@@grebe2332 ok your next task in your chemistry lesson is to recover the oxygen from rust! Then you can prove oxygen is present in rust! Should be easy for you to do so off you pop and make it your 2020 goal!
@@PeterPete oxygen being a component of iron rust does not imply that its easily separable, but i digress.
i looked at your channel, and ill address your theory directly. the fact that oxygen doesn't react with iron directly, or more generally that any element and any other element dont react with each other directly, is not evidence that a compound can't exist containing both; assuming so would ignore spectator ions and catalysts, which are often needed to produce compounds or speed up reactions without actually being present in the product.
the reaction that produces rust from water and iron is a redox reaction, one spurred by the movement of charges. neutral iron breaks down because its metallic bonds are held together by electrons. intuitively, the movement of these electrons away from the iron should weaken the bonds so as to allow a reaction to take place. hydrogen, going from a positive oxidation state in water to a neutral oxidation state in hydrogen gas, readily takes these electrons and favors the reaction.
if your next question is something along the lines of "if hydrogen in water serves this purpose, why doesn't this reaction occur in air, which is purported to contain both oxygen and hydrogen as individual gases?" note two things:
firstly, that the hydrogen content of the air is minuscule
secondly, that gaseous hydrogen has a neutral oxidation state, and thus does not need to take electrons to become stable.
i can't separate oxygen from rust myself, as it takes a pretty significant amount of heat to do so, but the idea is hardly new. its the entire principle behind smelting iron ore. takes carbon (coke) and ore, produces carbon dioxide and iron.
@@grebe2332 Quote - i can't separate oxygen from rust myself
So how do I, or anybody else come to that, know that oxygen is in rust if nobody can show it.
3:14 aka reconstituted lead
Who is here from online school
how can they breath before 1774
Denk They breathed their farts and burps to survive. Man such a horrible life they had
@@bgking2157 😆
With your lungs.
Ppl in 1773: i said- uhuhujhuhhhuhhuhguhguuhh
sary it is bad