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CEEA Erasmus
Приєднався 27 лис 2015
CEEA ( Chemistry Experiments a European Approach)
CHEMISTRY VIDEO RO CONTRIBUTION 1
The most relevant moments of the chemical reactions observable in some of the videos uploaded by Colegiul National Simion Barnutiu Simleu Silvaniei.
Переглядів: 2 052
Відео
ENDOTHERMIC REACTIONS
Переглядів 1,7 тис.7 років тому
See one example of an endothermic chemical reaction. The reaction between barium hydroxide and ammonium chloride.
CHEMISTRY VIDEO RO CONTRIBUTION FAST
Переглядів 5247 років тому
The most relevant moments of the chemical reactions observable in some of the videos uploaded by Colegiul National Simion Barnutiu Simleu Silvaniei. (speeded up)
THE INFLUENCE OF THE GRANULATION ON THE REACTION RATE
Переглядів 9887 років тому
An experiments demonstrating the role of the granualtion of a solid reagent when interacted with a solution. In this case marble chips of different granulations (and marble powder) are reacted with a solution of hydrochloric acid. See the results in different situations.
SUGAR OXIDATION WITH POTASSIUM NITRATE ROCKET PROPELLANT
Переглядів 16 тис.7 років тому
The reaction of table sugar (sucrose) with potassium nitrate as an exothermic process which is used to make model rockets propellants.
ZnOH2 SOLUBILIZATION WITH EXCESS NaOH
Переглядів 7 тис.7 років тому
Zinc hydroxide is formed when a solube zinc salt is reacted with an alkali base. If more base is added the white precipitate is dissolved giving birth to a complex.
WATER HARDNESS IDENTIFICATION WITH SOAP
Переглядів 2,2 тис.7 років тому
WATER HARDNESS IDENTIFICATION WITH SOAP
USAGE OF A BUNSEN BURNER
Переглядів 1647 років тому
A few basic concenpts concerning the Bunsen burner. How to adjust the flame of such a burner to obtain various temperatures.
TINCTURE OF IODINE
Переглядів 57 тис.7 років тому
The tincture of iodine is a common solution, widely used in medicine. check a simple way to make this tincture.
STUDYING THE ACTIVITY OF METALS
Переглядів 5967 років тому
Some metals and some salts are used to see which metal displaces which other metal, giving thus an idea how the reactivity series of these metals can be traced in a shorter form.
THE REACTION OF VARIOUS ALCOHOLS WITH SODIUM
Переглядів 23 тис.7 років тому
Different alcohols are reacted with hydrogen. The reaction speed is different, according to the lengh of the carbon chain to which the OH group is attached.
THE ACIDITY EFFECT ON AN EGG SHELL
Переглядів 6 тис.7 років тому
Check the effect of a weak acid (the acetic acid) on an egg shell. Some conclusions are drawn from this experiment.
THE FEHLING TEST
Переглядів 17 тис.7 років тому
A simple test to check if a sugar has reductive properties.
THE DIFFUSION SPEED OF GASES
Переглядів 8257 років тому
Two cotton plugs soaked in concentrated hydrochloric acid respectivelly ammonia can give, through a simple experiment, a clue about the diffusion speed of these gases
SOME CHEMICAL PROPERTIES OF AMINO ACIDS
Переглядів 1,6 тис.7 років тому
Some basic reactions of amino acids with active metals, bases, salts.
SUGAR DEHYDRATION WITH SULFURIC ACID
Переглядів 2,1 тис.7 років тому
Sulfuric acid is a strong dehydrating agent. It takes out the water from sugar leaving pure carbon. See the experments in the presence of potassium chlorate.
SOLUBILIZATION OF HYDROPHOBIC AMINO ACIDS
Переглядів 1,1 тис.7 років тому
SOLUBILIZATION OF HYDROPHOBIC AMINO ACIDS
REDOX TITRATION IRON 2+ WITH POTASSIUM PERMANGANATE
Переглядів 55 тис.7 років тому
REDOX TITRATION IRON 2 WITH POTASSIUM PERMANGANATE
PREPARING SOLUTIONS OF ACCURATE CONCENTRATION
Переглядів 5267 років тому
PREPARING SOLUTIONS OF ACCURATE CONCENTRATION
PAPER CHROMATOGRAPHY OF TEXTILE DYES
Переглядів 11 тис.7 років тому
PAPER CHROMATOGRAPHY OF TEXTILE DYES
MESURING THE pH OF DIFFERENT SOLUTIONS
Переглядів 2,6 тис.7 років тому
MESURING THE pH OF DIFFERENT SOLUTIONS
PURIFICATION OF BENZOIC ACID BY SUBLIMATION
Переглядів 31 тис.7 років тому
PURIFICATION OF BENZOIC ACID BY SUBLIMATION
COMPARATIVE REACTIVITY OF PRIMARY, SECONDARY AND TERTIARY ALCOHOLS
Переглядів 25 тис.7 років тому
COMPARATIVE REACTIVITY OF PRIMARY, SECONDARY AND TERTIARY ALCOHOLS
Hi my friend Can you write me the results of this experiment? I want them quickly, please, my friends
But what do I add in the burette?
Is it distilled water? I really forgot
@@be_happyy3add the standard solution which is silver nitrate
Pyrite, Marcasite, and Pyrrhotite are mineral polymorphs mineral of Iron Sulfide, but Fool's Gold is not another Iron Sulfide different from any of them and it is an unofficial name given to Pyrite.
Did it turn into liquid?
Doesn't make any sense
Presentation was very poor ,why benzoic acid why not any other organic compound wots the use if filter paper..I mean you must explain each step properly
This video is recommended by writers of Chemistry textbook in Vietnam
I am the last comment;)
Me ayudó mucho su video, muchas gracias 🎉
The people that discovered this where geniuses
You waste alot of time but can you draw agraph
You could have used equations as well!
Doing lab practical without lab coat 😢😢😢😢
1:09 Calciumcarbide is not an Oxydizer. 1:05 the formula of Hydroxylamin Hydrochloride is incorrect. This here is a combination of Ammoniumhydroxyde and Hydrogenchloride, which results in the formation of Ammoniumchloride NH4Cl. Hydroxylaminhydrochloride is [NH3OH]Cl, or NH4OCl.
ae viet nam cánh diều điểm danh
SILVER ACETALYDE DOES NOT EXPLODE, IT ONLY REPORTS. NO PRESSURE WAVE IS FORMED, ONLY A SONIC WAVE. PURE SILVER IS THE ONLY THING PRODUCED.
"ACETYLYDE" SPELL ERROR
experiment so much worse than ours, we did an entire assessment calling it bad
greetings brother of toby
only good thing about this video is the music
my teacher flamed this experiment so much bro ur actually cooked
hi allana
🔥
This is the best way of separation I have ever seen
This is the third video of this I have seen today. Where is everybody getting all this red phosphorus to waste? Phosphoric acid can be bought super cheap on Amazon, but Red phosphorus is near impossible to get unless you buy 10000 match boxes and have a ton of time and patience.
OMG! That music is awful! Reminds me of 1970s public television WHYY I almost was expecting a telethon to raise money! 😅😅😂
From chemistry book 10 kite( Viet Nam)
I understand that Zn + S => ZnS, but in the heat of the reaction doesn't the freshly formed ZnS not also react with O2? As i ZnS + 2O2 => ZnO2 + SO2? And does that not mean the result is or ZnO2 or a mixture of ZnS and ZnO2?
Sir, Why 45angle?
Hi, Can I learn the opposite of this process? I mean, how can we constitute MgSO4.7H2O? I am trying to do this for Na2SO4.10H2O. But when I add 10 moles H2O to 1 mole Na2SO4, it becomes solid. If I heat it or leave it in the room temperature, then water evaporates. How can we be sure that 1 mole Na2SO4 absorbs 10 mole H2O?
Please, tell me where this experiment was done.
plase give me concentration of reagent or prepration of all reagent
i am here
Slab
Who watches this I bet only for school 😅😂
How get blank tritration?
NOUEILLLL
🇮🇳🚩 Jai shre Hanuman
Is it possible to do the opposite, make red phosphorus from phosphorus acid
That would be the most popular chemistry video of all time. I think it can be done by heating it with charcoal, at least thats what google says. I am doubting it though or there would probably be a you tube video on it. I would love to give it a go, but i dont have the time. Maybe I'll try over the summer when I have more time
I thought nitrites were good for you?
What is the indicator here?
How much would it be to just buy the reagents, at uni we have a spectrophotometer already, so I would just need to reagents and my water sample right? Also, why water soluble barium salts? Is there no other chemicals you could use in this experiment to determine sulfate levels? Thank you for the video.
This really needs subtitles
If I clean the pipette and flask with this amount of sample, I will be expelled from the university 😂
😂😂😂
i take this in school lol
true 🤣
How do you make sure the reaction is complete so you stop heating the copper?
they keeping pushing the plunger in and out until there is no change in volume.i think that is when they stop the heating
@@Note-v4m thank youuu
quel verre utilises-tu? j'ai cru comprendre que l'h3po4 attaque le borosilicate... y à t'il un matériau de creuset resistant à cet acide et à la temperature de 800°C utilisable pour faire du charbon actif? (j'ai un tube vycor pour mon four, mais j'ai peur de le flinguer avec l'acide, ou de contaminer mon charbon avec la silice du tube...) merci, c'est super!
How about a video on the creation the cardiac medication nitroglycerin?
ermagosh
Hello, I am doing a chemistry experiment with my groupmates, I have a question. After boiling the oil, do I put it into the funnel while it's still hot or do I let it cool down? Please answer (this experiment is worth 30% of my grade) thank you!!
Thanks, I'm not drinking coke ever again.
what?
What is the colour of kMnO4 in neutral and basic medium during titration?
Cautions ⚠️ dont use the salt
it just made me fart
very nice onion