Smokes, Colors and Science feast
4:32
The Reactive Acetylene
5:00
2 жыл бұрын
Snakes made of calcium #short
0:37
2 жыл бұрын
These Traffic Lights never go out
3:48
Ο Κυτταρικός Κύκλος
9:47
From Vineyard to Chemistry Lab
9:49
4 жыл бұрын
The Colors of Chemistry
4:39
5 жыл бұрын
Mesmerizing Chemistry
5:10
5 жыл бұрын
The fun of Chemistry
4:54
5 жыл бұрын
Пікірлер
@pixelcoding09
@pixelcoding09 Күн бұрын
Αύριο γράφω διαγώνισμα α λυκεόιου χημεία ,με ύλη όλο το κεφάλαιο 2.....Πραγματικά ο άνθρωπος με έκανε να τα καταλάβω ΟΛΑΑΑΑ ΣΕ ΛΙΓΟ ΧΡΟΝΙΚΟ ΠΕΡΥΘΟΡΙΟ !!!!!!
@giorgosmastorellos743
@giorgosmastorellos743 15 сағат бұрын
Πως τα πήγες μπρο
@Ανύψωσις
@Ανύψωσις 4 күн бұрын
τι έριξε το παιδί μέσα στην κάψα εκτός απο την γλυκερόλη;
@chatzida
@chatzida 4 күн бұрын
Υπήρχε ήδη υπερμαγγανικό κάλιο και στο τέλος έριξε λίγες σταγόνες νερό.
@Ανύψωσις
@Ανύψωσις 3 күн бұрын
@@chatzida γιατί έριξε νερο; αυτό επιτάχυνε την αντίδραση; Ευχαριστώ πολύ
@chatzida
@chatzida 3 күн бұрын
@Ανύψωσις ναι, αυτό διέλυσε μια ποσότητα υπερμαγγενικού καλίου και έτσι ξεκίνησε η αντίδραση πιο σύντομα.
@theresaknockatyourfrontdoor
@theresaknockatyourfrontdoor 7 күн бұрын
dang you come in clutch here >:D
@vasilis-s4j
@vasilis-s4j 10 күн бұрын
ΤΕΡΑΣΤΙΟ ΕΥΧΑΡΙΣΤΩ
@nguyenthuy9824
@nguyenthuy9824 13 күн бұрын
Thanks Video. However I've once question is that - how have you checked aluminium ion or ferrous ion or zinc ion in water before titrating hardness water yet? Because not only calcium ion, magieum ion will be complex but also these ions (Al3+, Zn2+, Fe2+....) will be complex so. And how did you coat these ions in solution?
@GreekGrace
@GreekGrace 14 күн бұрын
Η αντίδραση με το εκχύλισμα λάχανου και το ξύδι, είναι καρβοξυλικο οξύ με οξύ πάλι; Εννοώ τι ένωση είναι το εκχύλισμα που περιέχει τον δείκτη ;
@chatzida
@chatzida 10 күн бұрын
O δείκτης που έχει το εκχύλισμα λαχανου είναι μια ανθοκυανίνη και είναι ασθενές οξύ.
@Ανύψωσις
@Ανύψωσις 14 күн бұрын
γιατι αφυδατωνεται πιο ευκολα η 3οταγης και η 2οταγης σε σχεση με την 1οταγη;
@chatzida
@chatzida 10 күн бұрын
H αφυδάτωση ευνοείται από μηχανισμό απόσπασης Ε1 που έχει ως ενδιά,εσο καρβοκατιόντα (άνθρακες με θετικό φορτίο). Όταν αποχωρήσει το υδροξύλιο από 3οταγή αλκοολή το καρβοκατιον είναι πολύ σταθερό (άρα ευνοείται ο σχηματισμός του!) επειδή υ΄παρχει ισχυρό +Ι φαινόμενο από τα 3 αλκύλια με τα οποία είναι ενωμένος ο C με το θετικό φορτίο.
@Ανύψωσις
@Ανύψωσις 10 күн бұрын
@chatzida ευχαριστώ πολύ
@anastasistzaras7389
@anastasistzaras7389 17 күн бұрын
Ευχαριστω πολυ με βοηθησε πααααρα πολυ!!
@zodd0001
@zodd0001 26 күн бұрын
you are great !
@TimothyRoyal-g8z
@TimothyRoyal-g8z 27 күн бұрын
They’re all interesting.
@HarryChestMaster
@HarryChestMaster Ай бұрын
In a lab without a proper lab coat. 😢
@abdullahyigitmutlu9366
@abdullahyigitmutlu9366 Ай бұрын
I have the answers but all i can understand he is talking some caucasian language maybe georgian.God I am lost but that's something more so i pretend it never happened
@promisteryolo1786
@promisteryolo1786 Ай бұрын
Ειμαι απιστευτα ευγνώμων για τη δουλεια που κανετε. Μας φερανε εναν φυσικο που δεν εχει ιδεα απο βιολογία αλλα τα βίντεο σας με εχουν βοηθήσει να καταλαβω το μαθημα
@chatzida
@chatzida Ай бұрын
Ευχαριστώ πολύ! Αυτός ήταν και ο λόγος που εφτιαξα αυτά τα βίντεο. Και για να αγαπήσουν έστω κάποιοι μαθητές τη Βιολογία που είναι μια γοητευτική επιστήμη!
@chemistyfacts
@chemistyfacts Ай бұрын
7:31 how is this possible that CuSO4 soln. is white
@马昕宇-f1w
@马昕宇-f1w 2 ай бұрын
Cool!
@vinn.640
@vinn.640 2 ай бұрын
what is the role of sulfuric acid here??
@echoofthepast07
@echoofthepast07 2 ай бұрын
Hi, I'm preparing to do this titration and I was just wondering what the concentration/method of preparation of the ammonia buffer solution was. I'd really appreciate it if you could send me the source material if there was any. Thank you so much!
@chatzida
@chatzida 2 ай бұрын
This is how you will prepare the buffer solution. For 200 mL buffer pH=10, 1M in ammonia: Add 13.5 mL of 25 % ammonia solution to 50 mL deionized water. In this dissolve 1.94 g of solid NH4Cl. Add water to 200 mL final volume and mix. Sorry for the delay.
@echoofthepast07
@echoofthepast07 2 ай бұрын
@@chatzida no problem! thank you so much!
@Best.Chem.612
@Best.Chem.612 Ай бұрын
​@@chatzida Can you share the calculation for buffer pH= 10. I mean why we take 13.5 mL of 25% ammonia solution and 1.94 g of ammonium chloride.
@SinghMaria-kr8ni
@SinghMaria-kr8ni 2 ай бұрын
Καλησπέρα, το παράδειγμα με το Κ μάλλον η απάντηση είναι 20 επειδή 39-19 = 20
@chatzida
@chatzida 2 ай бұрын
Ναι, έχει μείνει αναπάντητο για 8 χρόνια :)
@SinghMaria-kr8ni
@SinghMaria-kr8ni 2 ай бұрын
@@chatzida το βίντεο σας είναι βοηθητικό ακόμη και μετά από 8 χρόνια 👏 , ευχαριστώ 💖
@RenukaSandamali-zn2po
@RenukaSandamali-zn2po 2 ай бұрын
Amazing 🤓🤓🤓
@chatzida
@chatzida 2 ай бұрын
Thank you!
@dinisestima
@dinisestima 2 ай бұрын
Can you do the can implosion with a regular lighter??
@chatzida
@chatzida 2 ай бұрын
I don't think so but you can always try!
@davidwilkerson1904
@davidwilkerson1904 2 ай бұрын
Please come up with a better solution for sound rather than such repetitive music. I honestly would rather have silence or classroom sounds. The song gets spun over so much that I get seasick.
@chrisbeaman7784
@chrisbeaman7784 3 ай бұрын
Not a pair of safety glasses in sight
@ayaanali-uj7wh
@ayaanali-uj7wh 3 ай бұрын
how long will the colour stay??
@chatzida
@chatzida 3 ай бұрын
Usually from 10 to 30 seconds. The purple one faints faster because Rhodamine is not fully excited by Luminol.
@dibby1979
@dibby1979 3 ай бұрын
That's so cool!
@chatzida
@chatzida 3 ай бұрын
Thank you! We had a great group of students this year!
@riyaj9636
@riyaj9636 3 ай бұрын
Is the wine drinkable?
@chatzida
@chatzida 3 ай бұрын
Yes, since there is some preservative included. Nevertheless, fermentation should take place in a cool place, otherwise some vinegar will be produced.
@konsunday9577
@konsunday9577 4 ай бұрын
Wow❤
@VtmaniMD143
@VtmaniMD143 4 ай бұрын
I was so happy to hear the word called GOLD!!
@shraddhanair5254
@shraddhanair5254 4 ай бұрын
can you explain the principle behind calcium content being found ?
@its.me.khanyo
@its.me.khanyo 4 ай бұрын
The blooper😂😂😂
@lenkaweglarz
@lenkaweglarz 5 ай бұрын
Thank you! Your video really helped me to get to understand this process. Very useful!
@chatzida
@chatzida 5 ай бұрын
I am glad that it was helpful!
@ΑγνηΒλαχου-χ3ζ
@ΑγνηΒλαχου-χ3ζ 6 ай бұрын
στα μαθηματα στο πανεπιστημιο που θα περασουμε χαρης στα βιντεο σας , προσφερουμε ενΑ ΜΕΓΑΛΟ ΕΥΧΑΤΙΣΤΩ!
@ΑγνηΒλαχου-χ3ζ
@ΑγνηΒλαχου-χ3ζ 6 ай бұрын
υπεροχη παρουσιαση ..σας ευχαριστουμε πολυ!!
@abisenaguna548
@abisenaguna548 6 ай бұрын
This is how we think when mixing random things in the bathroom
@EllieVolanaki
@EllieVolanaki 6 ай бұрын
Ευχαριστούμε! Πολύ βοητικό το βίντεο σας και χρήσιμη η οπτικοποίηση των πληροφοριών!
@chatzida
@chatzida 6 ай бұрын
Σε ευχαριστώ κι εγώ!
@Withrajasikandarazam
@Withrajasikandarazam 6 ай бұрын
How many peoples are in India 😅❤
@EsnzSbzbsb
@EsnzSbzbsb 6 ай бұрын
Να ειστε καλα και εσεις και ο κυριος Χατζηδακης, πραγματικα τα μονα βιντεο που μπορω να κατανοησω
@kayeblade5948
@kayeblade5948 6 ай бұрын
Dabi and sanjis room
@MITStemGirl
@MITStemGirl 8 ай бұрын
Amazing experiments.
@MITStemGirl
@MITStemGirl 8 ай бұрын
This video is awesome.
@WildlifeWarrior-yd1fq
@WildlifeWarrior-yd1fq 8 ай бұрын
The video is better with the volume turned down
@anujsharma7853
@anujsharma7853 8 ай бұрын
It's a gem for me. Love from India
@GulamRashoolAnsari-y2s
@GulamRashoolAnsari-y2s 9 ай бұрын
Only science lover can understant the beauty ,
@GulamRashoolAnsari-y2s
@GulamRashoolAnsari-y2s 9 ай бұрын
Wooooow 🎉
@fredericdesalpes5824
@fredericdesalpes5824 9 ай бұрын
Beautiful and Useful, for our young students , thank you so much Sir ...Fred/France
@גדאור-ג7ע
@גדאור-ג7ע 9 ай бұрын
hello again i can not get my starch transparent maybe bc i am using cornflower ? should i use different starch? thx
@chatzida
@chatzida 9 ай бұрын
I guess yes. I use "soluble starch" most probably prepared from potato
@גדאור-ג7ע
@גדאור-ג7ע 9 ай бұрын
@@chatzida thx very much
@HarryChestMaster
@HarryChestMaster Ай бұрын
Try fine powdered rice starch as starch source. Boil it, cool it down and filter it. That should work as you would filter out most of the "nasties".
@גדאור-ג7ע
@גדאור-ג7ע 9 ай бұрын
hello my friend because you're in chemistry I would like to know is there any way to make transparent starch solution? because I tried to filter it and it doesn't work .thx
@chatzida
@chatzida 9 ай бұрын
I prepare my 2% starch solution in a way that it is transparent. I boil 100 mL of water in a beaker (beaker A), and in a separate beaker (B) I weigh 2 g of starch. Then I add a very small amount of room temperature water on the starch and I mix with a glass rod to make a slurry (not a solution). It is important to add the proper amount of water; we do not want starch powder nor solution but a slurry. Then I pour the hot water of beaker A to beaker B and stir thoroughly with a rod or magnetic stirrer. The resulting starch solution is transparent! But keep in mind that starch solutions are not preserved too long because bacteria and fungi love them!
@גדאור-ג7ע
@גדאור-ג7ע 9 ай бұрын
@@chatzida thx but what is a magnetic stirrer and does this make it transperent thx
@גדאור-ג7ע
@גדאור-ג7ע 9 ай бұрын
​@@chatzida thx my friend this is what I did but its not really transparent. i.e like water .if i use Maltodextrin can it be clear like water? bc i know it has starch in it thx a lot
@mr.rosenberg1958
@mr.rosenberg1958 9 ай бұрын
and not a single pair of safety goggles
@quiverixx
@quiverixx 9 ай бұрын
let him cook
@karagumruklu12
@karagumruklu12 9 ай бұрын
What is petrol?
@dabiransari2406
@dabiransari2406 10 ай бұрын
Can you explain chemical reactions behind of last clip fly rocket??