Investigating the Periodic Table with Experiments

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Investigating the Periodic Table with Experiments - with Peter Wothers

Рет қаралды 1,163,739

Күн бұрын

We celebrate 150 years of the Periodic Table and Mendeleev's genius by braving the elements from Argon to Zinc in this demonstration filled show.
Subscribe for regular science videos: bit.ly/RiSubscRibe
You can pre-order Peter's book "Antimony, Gold, and Jupiter's Wolf: How the elements were named" now: geni.us/AaaEa
Dr Peter Wothers is a Teaching Fellow in the Department of Chemistry, University of Cambridge and a Fellow and Director of Studies in Chemistry at St Catharine’s College. Aside from lecturing to Natural Science undergraduates at Cambridge, he is involved with a number of projects bridging the transition between sixth-form and university.
Peter is heavily involved in promoting chemistry to young students and members of the public and has fronted the lectures at the department for the Cambridge Science Festival for over 15 years. He was awarded the 2011 President's Award by the Royal Society of Chemistry for his out-reach activities. He has a keen interest in the history of chemistry and has amassed a significant collection of early works on the subject. Peter presented the 2012 CHRISTMAS LECTURES, The Modern Alchemist
This show was originally titled "Braving the Elements" and was filmed at the Ri on 15 April 2019.
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Пікірлер: 564

@drfirenugz2641 2 жыл бұрын

I haven't had a chemistry class, thought, seen, breathed anything chemistry in like over 15 years. This was an absolute delight and refresher on many things forgotten, ty

@MrEzPc 2 жыл бұрын

Love seeing the children actually excited sitting and watching through all this science. Marvelous to see young ppl engaged with science.

@TraneFrancks 5 жыл бұрын

Chemistry left me so cold in school. I wish I'd had lectures the likes of this when I was a student. Absolutely wonderful.

@neilwilson5785 5 жыл бұрын

Gosh, I feel the same. The periodic table was not explained to us at all (UK in the 1970's-1980's), and we didn't have the fundamentals. I switched off.

@randomdude9135 4 жыл бұрын

I left Chemistry and Biology cuz they only concentrated on memorizing some random reactions, drawing some body parts etc. So I agree.

@sulljoh1 4 жыл бұрын

Same. I had awful chemistry teachers

@radiationman72 4 жыл бұрын

Trane Francks fortunately i did have these type of experiments in high school. But now you’re seeing it hope you can still enjoy and be fascinated enough to ask why is it so?

@happykids9332 3 жыл бұрын

cx& ;)¿

@iameddywonder 11 ай бұрын

Chemistry is literally and figuratively the only way to end with a bang! Thank you, RI.

@mariusvanc 5 жыл бұрын

These lectures for kids are always so informative, and no one's trying to sell you their book.

@ddavidmac6009 5 жыл бұрын

Kids? Man im in my 70zz and it Hurts my head. It HURTS IT HURTZZZ

@ddavidmac6009 5 жыл бұрын

@Martin Jansen uhuh, and that being what is for ????

@Orcman666 5 жыл бұрын

If for example Sean Carroll tells me how the universe works he can plug in his newest book as many times as he wants.

@robglenn4844 5 жыл бұрын

And no one's trying to sell me a Jaguar this time lol!

@randomdude9135 4 жыл бұрын

*Richard Dawkins would like to know your location*

@aasemahsan 2 жыл бұрын

12:20 Nitrogen Iodide 15:35 Discovery of Inert Gases 21:16 Transitional Metals 27:50 Iron 33:18 Soda 33:40 Calcium Carbonate 40:00 Reactions with Oxygen 41:20 Lithium 45:00 Sodium 49:45 Magnesium Scandium Aluminium

@johndawson6057 Ай бұрын

Love you❤

@8698gil 2 жыл бұрын

I would have loved to have seen this when I was in school. A lecture like this could easily turn a kid toward a career in science. Both informative and very entertaining.

@crispi101 7 ай бұрын

totally agree with you!

@DavidInSydney1 5 жыл бұрын

Fascinating, clear and well presented. As a layman, I now have an understanding of why the periodic table is arranged the way it is. Thank you Dr Wothers.

@bitTorrenter 2 жыл бұрын

It's High School education.

@Name-js5uq 2 жыл бұрын

Mee too

@whysa4 5 жыл бұрын

Another great talk aimed at a younger audience introducing the wonders of chemistry, well done to Dr Wothers and the RI.

@zk513 3 жыл бұрын

I always loved chemistry and, in fact, almost went studying chemistry at university. I've had some very good teachers, but Mr. Wothers takes it to a completely new level. Thanks for this very interesting lecture.

@LiborTinka 5 жыл бұрын

The bonding simluator explained me a lot. What a great educational tool.

@miinyoo 5 жыл бұрын

Dr Wothers. Very good presenter. I've seen many of these presentations and he is easily among the most entertaining while doling out a surprising amount of information.

@mmmhorsesteaks 4 жыл бұрын

I prefer Szydlo from a purely stylistic point of view, but the RS's lectures are all excellent. Accessible and informative, while still being quite entertaining.

@AnoNymInvestor 4 жыл бұрын

@@mmmhorsesteaks I agree 100 %.

@kevintotimeh6648 2 жыл бұрын

@@AnoNymInvestor I agree 100% as well!

@thomasmuller8558 8 ай бұрын

That's remarkably incredible lecture i'm a 4th grade chemistry major and of course know almost every thing been said in this lecture but what amazed me that the way he say the information that even make kids understand really difficult concepts Much respect❤

@manamsetty2664 3 жыл бұрын

Magic of internet anyone from the world can view these so awesome

@KrazyOnIce Жыл бұрын

im 12 and im in 7th grade and i had to watch all of this for homework. This is the one time homework was fun :(

@chococandy8009 3 жыл бұрын

Thank you @The Royal Institution for uploading these marvellous and content rich leactures here on youtube for free. We are really very fortunate to watch and enjoy such great experiments done beautifully by these knowledgeble professors. I hope we could get such curious environment in our schools also so, that student can explore the beauty of chemistry which is far beyond just few chemical reactions which they cram for their exams.

@ezza88ster 5 жыл бұрын

Wonderful lecture! Well done! If this video doesn't get a few hundred kids into chemistry I would be amazed. Maybe one of them could be a Nobel Laureate?? Basically all chemists just love bangs! :-)

@JorgeRamos-xw6dy 3 жыл бұрын

So much fun. I graduated in chemistry and never saw such a cool lecture.

@Daniel-rz5pi 3 жыл бұрын

What you doing now? Analytic or organic? :) im a 3rd's year student.

@jamesmeyer6992 2 жыл бұрын

That's because this is put on by the Royal Institute.

@larissapereira1838 2 жыл бұрын

Same here mate, they made the periodic table boring but it is such a remarkable arrangement

@gaussianvector2093 2 жыл бұрын

really, i didn't even get my minor (3 credits away but couldn't be organic, I loved organic too much to strive for a sidenote on a piece if paper) and I did all these experiments (except fluorine) myself. Alkalis with water, mirror, decomposing and recompising H²O .... Then it got even cooler, using H²CCl² regularly, crystalization, spectroscopy. Those were the days.

@gaussianvector2093 2 жыл бұрын

Did you enjoy the labs or (as I often observed) did you try to get through them as quickly as possible. I say this because I hypothesize that many remarkable phenomena go unappreciated by trying to "get it right'" or understand the math your expected to preform (very basic, but many chem majors loathe math and hence don't retain it, so in some sense they learn it all over again in chem). I loved lab and fell in love with chemistry all over again, eventually somewhat regretting my choice if major. But maybe it was the way I walked that path that allowed me to experience the experiments in a way much more akin to discovery than a required curriculum. (Especially as much of my chem was not required or even counted towards a minor and I was too far and too in debt to major at that point. I just kept taking all the ochem they would let me.)

@rajukep6599 4 жыл бұрын

Amazing never thought would sit through 1+ hr of pure chemistry 🔥🔥🔥🔥🔥👍🏼👍🏼👍🏼👍🏼

@monika.alt197 3 жыл бұрын

You’ll definitely enjoy Andrew Szydlo’s lectures at the RI too!

@kevintotimeh6648 2 жыл бұрын

@@monika.alt197 Andrew Szydlo is an excellent science educator, love his presentation. I can tell these educators such as Peter could be influenced by the man that inspired me to become a scientist- Bill Nye the Science Guy himself ❤

@palp1880 5 жыл бұрын

thanks to chris brackstone for his tireless effort in preparing these lectures

@jakeblack6128 2 жыл бұрын

Huiiuiuihihihihihihiihii

@kantanlabs3859 5 жыл бұрын

This one is fantastic in many respects, behind the didactic and impressive experiments, lots of science, history and even modern discoveries. For instance I never heard of explosions induced by Coulomb's force before. Surely one of the best conference here for a long time !

@Ireniicus 5 жыл бұрын

Utterly brilliant and I think every child on earth should get the opportunity to watch it.

@profphilbell2075 5 жыл бұрын

Those doing rocket physics do.

@JohnHlavaty 5 жыл бұрын

I gleaned more from that 85 minute video than I learned from high school chemistry. I believe, it's all about the quality of the teaching. A teacher has to either possess the ability to actively engage her students in the subject matter or the university must teach it as a necessary skill.

@iarwainben-adar8978 5 жыл бұрын

If you want more information about the coulombic explosions you see the actual discovery experiments as one of the team is youtuber Thunderf00t.

@drmoss_ca 5 жыл бұрын

I think the thing that makes the difference is that the properties of the groups can be explained by the valencies, and in particular the number of electrons in the outermost orbit. When I asked my chemistry teacher why certain reactions went the way they did, his best answer was 'that's the way it works'. It's so much easier to understand when you have a 'why it works' rather than just the 'way it works'.

@iarwainben-adar8978 5 жыл бұрын

@@drmoss_ca I'm sorry to hear that, if your chemistry teacher really did just respond like that they have no business pretending to understand chemistry at any level a child will be examined at. We learned this stuff at 14-15 at my school, but that was last century :)

@drmoss_ca 5 жыл бұрын

I suspect my experience was a little further back in the last century!

@tibfulv 5 жыл бұрын

We used to teach rhetoric to people, which is all about effective speech. These days, it's much more haphazard, as teachers have to rely on their natural abilities instead of a trained skill.

@eskayblack Жыл бұрын

This was the most beautiful lesson on periodic tables I have ever attended/seen.

@ZeedijkMike 5 жыл бұрын

Yes - That's the way to teach and entertain at the same time. Well done.

@aureliamitchell478 4 жыл бұрын

This video is amazing! I get bored real easily but I watched the whole video no problem

@audreymciver3087 4 жыл бұрын

I could listen to his lecture for hours because of his voice.

@boonencrocket3541 3 жыл бұрын

I would like to Very Respectfully remind Dr. P. Wothers, that the proper pronunciation of Nucleus is "Nuke-LEE-es". Both my wife & I, time & again, listened to your pronunciation of Nucleus (right after mentioning Potassium...) said, "Nu-Kee-les in the heart..."!! (chart of Electrons: 19, Neutrons: 20). Please notice that by no means I mean disrespect. In fact, I gave a thumb up. Thank you for giving all the youngsters interest in science.

@user-mu2ng9nk6i 5 жыл бұрын

Thank you very much for your lecture. A few years ago l attended your seminar in CAMBRIDGE Summer Programmes. At that time I didn't understand well what the periodical table means. This lecture helps my understanding much better. From JAPAN.

@urlkrueger 5 жыл бұрын

Fantastic presentation. I had never seen the Potassium mirror demonstration before nor the baloons of different gasses. Thank you.

@xxxrst 5 ай бұрын

Chemistry has always fascinated me, electrons, protons , neutrons. The lecture was very informative and entertaining, I will be looking forward to checking out more of your lectures. Thnx dr. Peter worthers. ✝️🙏

@lineikatabs 4 жыл бұрын

If my chem teacher was explaining things as well as Mr. Wothers, life would have turned out very differently for me, even without these lovely experiments.

@jpdemer5 10 ай бұрын

I was a professional chemist for many years (Ph.D.), and I've never seen that potassium mirror demonstration before. There's always something to learn from these lectures!

@Anijerang 4 жыл бұрын

One of the best science based channels on KZfaq.

@Kalumbatsch 5 жыл бұрын

42:42 "and my rod has gotten much smaller" *muffled laughter*

@alexvaughan5269 3 жыл бұрын

Sounds like a line from the Bible..

@2yugen2 3 жыл бұрын

Good stuff. Fun demonstrations. I bet those kids had a blast.

@bryankirk3567 5 жыл бұрын

If mister Wothers was teaching at Prince Edwards Boys High in the early seventies, I would definitely be a Chemist today. Thank you Sir!

@christine2689 5 жыл бұрын

“Physicists, of course, love smashing things even further and breaking everything”

@jerrylong381 4 жыл бұрын

Yeah, you would think they wouldn't have any nice things by now.

@Adam_Adamsky 4 жыл бұрын

Yeah, and you didn't have to wait long for the effects of such approach. 4:23 the fella showing the electron flying around the proton, which is a complete bulls#*t. Every secondary school student knows that.

@ptitera 4 жыл бұрын

@@Adam_Adamsky I'll bet he knows too. But this model works quite good for most of the basic chemistry.

@Adam_Adamsky 4 жыл бұрын

@@ptitera - the model of flat Earth supported from below by four elephants would also work equally "quite good for most of the basic geography" 🤣

@ptitera 4 жыл бұрын

@@Adam_Adamsky Yes, and unless your measurements do not exceed about 30km in length you may freely use it (except of height measurements). The thing is you have to know limitations of your model and when to switch to another one. Keep in mind too that this lecture is intended for young audience. They are not ready to understand the physics of electron.

@johncuzzourt2118 5 жыл бұрын

So cool! I'm an old (retired) chemical engineer and I just learned about coulombic explosions from the sodium-water reaction!

@bretthurst5716 5 жыл бұрын

there is chemistry going on in the skin of the people in the mid-back row. "As we can all see, the constant heat of the spotlight slowly but surely draws the H2O out of their pores and evaporates it into the air as 'water vapor', quite brilliant really"

@twosongs7396 Жыл бұрын

Brilliant presentation. Impressed as an adult, I can only imagine how elated I’d have been, as a child, watching this, live in your lab. Good show!

@johnmcaree7298 3 жыл бұрын

Excellent way to spend an hour and a bit. I loved chemistry at school, and wish my 16 year old self had had the foresight to continue with it.

@robinbrowne5419 5 жыл бұрын

Cool experiments. Entertaining and educational. Thanks. Cheers from Canada.

@alancurtis9155 7 ай бұрын

An absolutely brilliant lecture, the lecturer has a great ability to hold your interest.

@nivinajith5334 3 жыл бұрын

Thank you so much @The Royal Institution for this superb show,❤

@arik9112 3 жыл бұрын

I never knew that diamond was the best conductor of heat, thanks!

@brendanfarquharson1874 2 жыл бұрын

Excellent lecture. Best explanation of periodic table with real experiments to prove. And fun too!

@pellechem 5 жыл бұрын

Always so inspiring chemistry from Peter W Thanks from Sweden.

@ezzulhilman7626 5 жыл бұрын

Thank You Dr. Wothers

@3VILmonkey 5 жыл бұрын

Considering how old and prestigious is that lecture hall, I wonder how many other explosions have occurred there as a result of lectures and presentations.

@theskett 5 жыл бұрын

I'm now curious to know the ratio of intended vs. unintended explosions :-)

@3VILmonkey 5 жыл бұрын

@@theskett Ha! Great point!

@alexenriquez3997 4 жыл бұрын

@@3VILmonkey p!

@garymingy8671 3 жыл бұрын

One per semester per 100 students..taking chem. Things happen one goal for is no deaths no hospitalisation , a couple stiches is knda ok.

@sixstringedthing 3 жыл бұрын

Deflagration encouraged, detonation slightly less so. Costs a lot in glassware and insurance premiums. :)

@akoponen 5 жыл бұрын

Excellent presentation! I expect that one could differentiate solid gold bars from tungsten containing gold bars by the different sonic responses.

@twosongs7396 Жыл бұрын

What would Au’s frequency be, do you know?

@PlasmaHH 4 жыл бұрын

The way this guy pronounces "order" he could very well be speaker of the house of commons...

@williamfabuien1125 Жыл бұрын

I hated school and found reading boring when I was young. Now age 46 I am addicted to videos like this and can’t stop reading.

@savage22bolt32 Жыл бұрын

Me too, & I'm twice your age!

@g-palmer4760 5 жыл бұрын

Should have explained a bit about how the orbitals and shells are structured, as this would lead to a better understanding of why elements react with each other. EG: Helium is stable because the S1 orbital is full - no need to try grab another electron from somewhere else...

@loops8274 Жыл бұрын

Chemistry teachers always have an unfair advantage because there's literally always a good reason for them to set things on fire

@25.7M-subscrib... 3 жыл бұрын

Spent almost 1 and a half hour in a single sitting wonderful

@davequinn4701 5 жыл бұрын

Only 227 thumbs up..... this deserves so much more..

@patientson 5 жыл бұрын

Thank you, Mr. Peter Wothers.

@JerryEricsson 4 жыл бұрын

I am, I guess, a rather old man now. Well not old, but surly a bit over middle age, at the age of 68 years, yet I find this entire series very enlightening. Rather then watch young men open old rations from wars gone by and eat the food, I can review much of what I learned as a child, and even add new knowledge to my aging grey matter. For this, I offer my most sincere thanks.

@fiegenfiegen 4 жыл бұрын

Terrific lectura indeed! I understand the periodic table at last… 35 years after I left school!

@terrybailey2769 3 жыл бұрын

Lots of good practical demonstrations. A very entertaining lecture, this what get kids interested rather than some of the rather tame Christmas lectures of recent years. Brilliant.

@ventsislav1796 Жыл бұрын

Incredible! I haven't seen so clever man for a long time! He didn't have a look at some helping pieces of paper! It means only one-he really knows what he does! I'd fancy meeting that guy!

@tdhanasekaran3536 3 жыл бұрын

The Calcium oxide that is mentioned in this video is called 'Sunnambu' in the Tamil community in India. After mixing with water it is used to paint the walls that gives a glittering white color. If the Calcium oxide is left in open for a longer time it will react with the carbon dioxide in air and turns into a nice white powder and totally unreactive Calcium Carbonate. In fact the original 'Sunnambu' is made from collections of calcium carbonate sources found in the sea shores (many varieties of marine species known as 'kilinjal' in the Tamil language) which is burned at very high temperatures in air tight kilns known as 'Sunnambu kalavai' which turns calcium carbonate into the reactive calcium oxide. Calcium sulphate is another interesting material known since several thousand years of human knowledge.

@dembro27 10 ай бұрын

That potassium mirror demonstration was awesome.

@stephm4047 5 жыл бұрын

That was really an AMAZING lecture ! Packed with information, history, and entertaining visual experiments. I really had a great time watching this. Thank you. 👍🏻👍🏻👍🏻

@Tocsin-Bang 3 жыл бұрын

I used to love teaching the Periodic Table.

@nenben8759 3 жыл бұрын

0:24 Order!!!!

@marsy1480 Жыл бұрын

Brilliant! Don’t remember much of this from when I did chemistry at school in the 80’s. Very informative.

@angermanager2116 4 жыл бұрын

8:33 A satisfying "Nucleus". Use it to ignore all the instances of "nuculus".

@martineastburn3679 4 жыл бұрын

I had a Mebus band version (2D version) and the Lanatide fit into the standard table. It was made in the 70's by a Sr Scientist Chemistry - G.E. as I recall. I got it and gave mine to the Chem teacher next door. I taught Technical Electronics. Never got a picture of it and is my lament since.

@paulharvey1756 4 жыл бұрын

been watching at 3/4 spped after a dube and loving science thumbs up!

@dannywlm63 4 жыл бұрын

fascinating . i was expecting to learn how to cope with my wife once a month. but this was even better

@tdhanasekaran3536 3 жыл бұрын

There is another nice technique where Coloumb explosion occurs. That technique is femtosecond laser ablation and laser micromachining. It is of course not known to the general public. The highly energetic and intense laser power used causes the atoms on the surface to be fully ionized (stripping of all the electrons leaving a positively charged atom) and the resulting columb explosion vaporizes the material without heating the surrounding (it is not the traditional thinking of melting followed by vaporization).

@circumworld-no-ticket 2 жыл бұрын

the end is fantastic 😊 I'm crying 😭 all the kids teachers must look like

@truthseeker3907 5 жыл бұрын

Thumbs up! :) Indiana USA.

@arwo1143 4 жыл бұрын

The burning steel wool looks so fucking cool

@jlp1528 4 жыл бұрын

Chris is like Neil on Periodic Videos - technicians are the unsung heroes of science. :)

@itzybitzyspyder 2 жыл бұрын

What an amazing teacher he is.

@armandmajer8049 3 жыл бұрын

What an amazing professor!

@jerryclarkiancabuntucan9375 2 жыл бұрын

This lecture is REMARKABLE!

@ZeHoSmusician 4 жыл бұрын

24:35 I'd have said that helium extinguished the flame because, at least locally, it prevented oxygen from keeping it burning... (If it literally "did nothing", the flame should've been unaffected, no?)

@finchisneat 3 жыл бұрын

Yeah I caught the same thing... Lack of precision of speech, hopefully they know what he meant. I could imagine have questions as a kid after hearing the way he said that. "How does it put it out if it does nothing?" What it's doing is displacing oxygen...

@lalleyatata 2 жыл бұрын

I am 7th grade schooling I did understood and learned about elements out of this lecture Teacher of all the time thank you for Enlighten my curiosity

@hlr3932 Жыл бұрын

Such a great lecture. One question that always comes to mind: HOW did the chemists at those times design and carry out their experiments (without the kind of info we have now), without burning/injuring/cutting/blowing themselves or the labs (guess there were some who did), but yet it is remarkable. Perceiving the elements with the 5 senses would be relatively painless (mostly); see (color), taste (sweet/bitter/sour), smell (odorless/pungent), touch (smooth/rough), hear (hissing/cracking), but other tests would be way more problematic especially considering dearth of equipment.

@Czechbound 2 жыл бұрын

That. Was. Fantastic. Day one of highschool chemistry should be just watching this

@joeyjeremia 5 жыл бұрын

The Robin Williams of chemistry 👍

@priyanshukushwaha6408 3 жыл бұрын

I was searching this type of lecture for weeks, and yupp I really enjoyed it😊

@sooryanarayanan4273 2 жыл бұрын

thanks, he always ends with a bang

@pappaflammyboi5799 3 жыл бұрын

Electrons don't orbit the nucleus, otherwise, they would emit radiation. They are in a probability cloud defined by the Schrodinger wave equation. The rest of the lecture and presentation was quite enjoyable.

@chan_for 3 жыл бұрын

50:05 element for making Flashbangs/Stun-Grenades in Military

@GodlikeIridium 3 жыл бұрын

Great lecture. I am a chemist but have never known about the history of the periodic table. Super interesting

@davidelliott5843 Жыл бұрын

Argon is used as a gas shield for welding or any process where air has to be kept out. But it’s only separated when gasses are refined from air for use in steel works. No steel works - no separated oxygen, no liquid nitrogen and no argon

@JoriMikke78 5 жыл бұрын

Fantastic video! More of these, please.

@Tularis 5 жыл бұрын

I love ❤️ this guy and his lectures!

@karapuzo1 5 жыл бұрын

Nitrogen is still called Azot in a lot of languages, French, Russian , Bulgarian and even Turkish, among others.

@kudosdc 5 жыл бұрын

Azides are nitrogen compounds

@tiborpurzsas5465 5 жыл бұрын

Nitrogen is called nitrogen in Hungarian! Just saying . I know ,Because I'm hungarian

@christiangeiselmann 5 жыл бұрын

Bulgarian too.

@karapuzo1 5 жыл бұрын

@@tiborpurzsas5465 ok, corrected

@Nivola1953 5 жыл бұрын

karapuzo1 you forgot Azoto in Italian

@coriscotupi 2 жыл бұрын

What a great lecture, I only wish I'd had nearly as good and enthusiastic chemistry teachers and professors back in the day. The one amendment I'd make is about the object shown at 18:20. It's not a turbine blade but actually a compressor (or perhaps a fan) blade. They both work in the opposite way to a turbine blade, i.e, their objective is to move fluids by their rotating motion around a shaft, whereas a turbine blade uses the fluid's motion to impinge rotation upon a shaft. They're quite different, really.

@jonathanjollimore7156 2 жыл бұрын

One of the reason mastering fusion power would be good can you make new elements?

@ccgtn00 5 жыл бұрын

Great lecture. Science as it should be accessible and fun.

@MannyXVIII 5 жыл бұрын

1:05:40 you can savely assume tho that it is H2SO3 instead of H2SO4 since it needs special catalysts or other conditions so that sulfur form SO3 when burning ( the temperature of the burning sulfur is too high for So3, so even if it forms it will react in the manner 2 SO3 -> 2 SO2 + O2)

@casedup Жыл бұрын

brilliant! you made me a chemistry fan. why why whyyyy!!!?!?

@DCFusor 5 жыл бұрын

BTW, pure hydrogen burns without noticeable color. I believe I saw sodium lines in that fire. Not surprising, it doesn't take very much impurity at all to color a flame (it was the basis for some uses of spectroscopy to test what you had). Probably the talc they usually put inside balloons during manufacture.

@brcardoso00 5 жыл бұрын

The color of the flame in this case comes from the combustion of the baloon, not the hydrogen.

@DCFusor 5 жыл бұрын

@@brcardoso00 Ah, so the rubber jumped to the center and evenly dispersed to all of the gas. Gotcha.

@brcardoso00 5 жыл бұрын

@@DCFusor No need to be rude; the color of the flame is indeed given by the baloon burning (to be precise, by the carbon in the rubber that it's made of, which gives a yellow color).

@DCFusor 5 жыл бұрын

@@brcardoso00 Sorry if I came off rude. I own a lab, we use H and D ( we have a fusor ) from high purity (5 9's) tanks, and have, yes, burned it in various ways - usually on purpose. I submit that rubber from the balloon doesn't fly into the center across the pressure differential, and indeed, if you've done this, as we have at our lab (scientists like fun too) - the rubber doesn't even get hot unless it's a pretty large balloon. It certainly does not disperse perfectly evenly into all parts of the resulting flame. _I've_done_this_.

@brcardoso00 5 жыл бұрын

@@DCFusor It's funny, because at virtually every lecture in the RI where they do this experiment, the presenter generally explains the color as the combustion of the baloon.