Generally I do not purchase chemicals via the web. Large chemical companies do not sell to private individuals. For what I know, "United Nuclear" is one of the best web-based stores, if you live in the U.S. - I almost always rely on local retailers in my country.
I see, an interesting paper indeed... but in the video nobody spoke about pH 7... the solution is 2 M in H2SO4 so the environment is EXTREMELY acidic. Actually, so acidic that the red precipitate is almost only V2O5 with polymeric structure. Once dissolved, the yellow species is the pervanadyl cation. Anyway, there are many "wrong" videos on the web that state that vanadate is yellow or that V(IV) is green...
I do not know any compounds of V(I) but some must have been studied because "+1" is listed in the possible oxidation states. I bet they are all very unstable and hard to isolate...
For what I know the "Bayerische Defiliermarsch" is a bavarian military parade song. I was not aware of its use in such context, but it is certainly much older (1850 it seems). Anyway, no offense intended. It just sounds great!!
+Shabista Shahid all transition metal ions with incomplete d orbitals are colourful. they all have different colours due to different d-d transition taking place in each due to difference in no. of electrons present.
@@dhanroj better to say that only transition metal ions solutions are colorful. You said "transition metals with incomplete d orbitals" when only metals with incompletely filled d orbitals are transition metals. Saiyng that you assume that group 12 elements are transition metals, when they aren't (iupac definition of transition element)
They are colored because there are d-d electron transition due to light absorbed, light not absorbed is transmitted (passes straight through the solution). The color you see is the result of the transmitted wavelenghths minus the absorbed one
Dear Sir, please note that when you copy and paste the same response to a lot of different videos you end up making yourself look foolish. The video doesn't say anything about pH 7
You are probably my favorite user on youtube. Informational, fun and exciting videos.
Generally I do not purchase chemicals via the web. Large chemical companies do not sell to private individuals. For what I know, "United Nuclear" is one of the best web-based stores, if you live in the U.S. - I almost always rely on local retailers in my country.
I see, an interesting paper indeed... but in the video nobody spoke about pH 7... the solution is 2 M in H2SO4 so the environment is EXTREMELY acidic. Actually, so acidic that the red precipitate is almost only V2O5 with polymeric structure. Once dissolved, the yellow species is the pervanadyl cation.
Anyway, there are many "wrong" videos on the web that state that vanadate is yellow or that V(IV) is green...
Omg i love this video
so clearly explained, everything well done and arranged
I think it's one of the best-done videos on TH-cam
great video, also at 1:05 isn't sodium Na not S?
why do you use zinc mercury amalagm rather than zinc?
Thanks!
The song is "Abandoned castle" from a Castlevania soundtrack
which website do you buy your chemicals from? if not from a website, can you recommend one anyway?
The equation at 2:40 is incorrect... You produce 4H20 not 6.
Yep. That's correct. Thanks for pointing it out.
why is it necessary to use H2SO4 2M?
what are the control variables
Why use NH4VO3 to obtain V5+ ions in solution instead of reacting V2O5 solid with H2SO4?
really awesome, and what's the title of the music?
Wonderful demonstration, very clear.
I do not know any compounds of V(I) but some must have been studied because "+1" is listed in the possible oxidation states. I bet they are all very unstable and hard to isolate...
Is zinc amalgam used in organic chemistry for reduction?
For what I know the "Bayerische Defiliermarsch" is a bavarian military parade song. I was not aware of its use in such context, but it is certainly much older (1850 it seems). Anyway, no offense intended. It just sounds great!!
Grazie!! Questo era una cosa un po' insolita... Le idee non mancano e di video ne spunterebbero molti di più se solo avessi più tempo!!
Great chemistry and great video editing!!!
Thank You. I love your videos. The music is always great.
Vanadium is also wonderful 😂
Why did you use so much zinc and tin?
so that means zinc amalgam doesnt react with H+ to release hydrogen?
No. This reaction is kinetically blocked because of the overpotential of Hydrogen towards Hg.
I love the music. Extreme chemistry!
My Little Pony somehow got me here.
you have me curious now, how even?
awesome song, not too often where i hear castlevania curse of darkness :P
because it does not give off hydrogen and therefore the solution does not become cloudy with tiny bubbles
Great vid, love the music
Vanadium is the coolest transition metal!!! :)
That's for sure!
what is the observation?
Dude you saved me, THX!!
So many dislikers of that lovely background music?
My chemistry teacher played this at full blast, I just couldn’t man 😂
Nice video, element and music-belli video elemento e musica😂
Why is aqueous solution of VO2+ is colourful
+Shabista Shahid all transition metal ions with incomplete d orbitals are colourful. they all have different colours due to different d-d transition taking place in each due to difference in no. of electrons present.
@@dhanroj better to say that only transition metal ions solutions are colorful. You said "transition metals with incomplete d orbitals" when only metals with incompletely filled d orbitals are transition metals. Saiyng that you assume that group 12 elements are transition metals, when they aren't (iupac definition of transition element)
They are colored because there are d-d electron transition due to light absorbed, light not absorbed is transmitted (passes straight through the solution). The color you see is the result of the transmitted wavelenghths minus the absorbed one
a chemistry assignment vid suggestion by a teacher has led me here
Y (same)
other than background music everything is great
Everything is great, the music also😂
What’s with the creepy music??
I like the music....👍
Thanks!!
also, did you use a nazi parade song for your nitrocellulose vid (jus what google said)
FInal Countdown?
Dear Sir, please note that when you copy and paste the same response to a lot of different videos you end up making yourself look foolish. The video doesn't say anything about pH 7
control variables
lol what's with the music
Why such a horror music .... We're already scared of chemistry :|
asap