I would highly recommend this video and nothing else. If you want be spot on with transition elements, do watch this video and then do exam questions to apply your knowledge
Amazing video thank you! At 27:51 i think Ethanedioate has a single bond between the Carbons. And at 50:49, Fe2+ to Fe3+ is purple to colourless solution. Or perhaps OCR is lenient with colours? and the balanced equations for Fe3+ to Fe2+ and Cr2O72- to Cr3+ is: 2I- + 2Fe3+ > 2Fe2+ + I2 (pale yellow to brown solution), and Cr2O72- + 14H+ + 3Zn -> 2Cr3+ + 7H2O + 3Zn2+
SIr, Cr3+ solution is violet not green, and Mn2+ sol becomes a light brown ppt not pink according to the ocr a book. pg 152. Thank you for your videos they really help!
Re Cr3+: technically it is violet but in practice, it looks green. I think OCR MS accepts both green or violet because they cant argue with what you would see in a lab.
hey big man, Im sorry to infringe on ur GOATmanship, but at 51:35, when multiplying the half equation for the oxidations of Fe 3+. you missed a balancing number in the final equation. Other than that, keep up the amazing work u absolute GOAT.
Hi sir, the CGP book says copper goes from ‘pale blue solution to blue precipitate’ , but in this video it’s the other way round saying that the precipitate is pale blue and solution is blue. Does it really matter or is there a mistake somewhere 😵💫🤔. Thanks
I would highly recommend this video and nothing else. If you want be spot on with transition elements, do watch this video and then do exam questions to apply your knowledge
this was so so helpful, I didn't understand this topic at all until I watched this video - thank you SO much
Amazing video thank you! At 27:51 i think Ethanedioate has a single bond between the Carbons. And at 50:49, Fe2+ to Fe3+ is purple to colourless solution. Or perhaps OCR is lenient with colours? and the balanced equations for Fe3+ to Fe2+ and Cr2O72- to Cr3+ is: 2I- + 2Fe3+ > 2Fe2+ + I2 (pale yellow to brown solution), and Cr2O72- + 14H+ + 3Zn -> 2Cr3+ + 7H2O + 3Zn2+
you're literally a LIFE SAVER!!!!! thank you soooooo much
Pleased you found the video helpful 😀
he saved my life this chemistry video is brilliant!
16:05 - the spec does say Cu2+ catalysing the Zn reaction but the first reaction you meant Mn instead of Cu :)
at 21:54 isnt Mn2+ light brown with OH and NH3
Yes
Yeah
At 51:31 the Fe2+ was not multiplied by 2 on the RHS :)
doesnt ethanedioate have a snigle covalent bond between the carbon atoms
this is such an excellent video thank you for all your effort! well appreciated:))
You're very welcome!
It's ridiculous to expect us to memorise all those colours...
firm it g it aint that hard
Lmao its easy i got it in 20 mins
@@ABZ051 bro thinks hes the shit
Chemistry is the hardest A level and that’s coming from someone taking FM and physics
@@Leo-sb5bq just cap mate
Really great and understandable session, thanks!!
SIr, Cr3+ solution is violet not green, and Mn2+ sol becomes a light brown ppt not pink according to the ocr a book. pg 152. Thank you for your videos they really help!
Re Cr3+: technically it is violet but in practice, it looks green. I think OCR MS accepts both green or violet because they cant argue with what you would see in a lab.
Mn2+ itself is light pink, Mn(OH)2 is the brown precipitate
are u sure we have to know all these colours? I have the PDF file from OCR "colours of inorganic ions" and it barely has half those ions
I'm quite confused as well because in the spec it does not mention that we have to know them
really helpful video thanks! I think in my textbook it says the ethanedioate doesn't have a double bond between the two carbons tho!
thanks for that
Yeah you’re right carbons can only form 2 bonds anyway
Chromium is violet when in aqueous solution no?
Yeah
hey big man, Im sorry to infringe on ur GOATmanship, but at 51:35, when multiplying the half equation for the oxidations of Fe 3+. you missed a balancing number in the final equation.
Other than that, keep up the amazing work u absolute GOAT.
Hi sir, the CGP book says copper goes from ‘pale blue solution to blue precipitate’ , but in this video it’s the other way round saying that the precipitate is pale blue and solution is blue. Does it really matter or is there a mistake somewhere 😵💫🤔. Thanks
It goes from a pale blue solution to a pale blue precipitate. Then adding excess NH3 makes it a dark blue solution
Copper (II) ions (aq) form a blue solution, and Copper (II) ions + aqueous OH- ions form a pale blue precipitate.
Allery Chemistry at 51:29 why is Iodine being oxidised isn't it gaining electrons ?
wait but from 2I- to I2 thats losing e- right as its getting less negative so its oxidation
thanks i got my exam at 09:00 today, wish me luck
Hope it went well for you this morning 👍
this really helped, thanks
Glad it helped!
great video, very helpful
Glad it was helpful!
Thank you so much! All is not in vain! By the way, do we have to memorise the Complex Ions Solution Colours table?
Yes
Got the exam in 2h 28 mins 😤😤
How did it go??
Thank you so much!
No worries!
Great👏
11:45
I thought cr3+ in aq was dark blue
Can u make the video in Punjabi too hard to undarstand english
why is this so funny 😭
@@enphinity im cryinggggggggggg wthhhh bro thinks everyone speaks punjabi😭😭😭😭😭😭
@@BoXy-crabs its not bad to ask a question, if the answer is no, they'll say that
@@LuminaryMonochromeyeah well this is made for a level students, why would it even be in punjabi?
I bet someone from 13-CH2 in Eastbury is reading this comment right now.
lmmaaoooo
Deez nuts
Lmaoo
Not from your year but 13B-CH1 Eastbury 2022
@@afnanhyder5056 looool did not expect to see you here
Thank you for making these videos free ✨🫡
No problem 😊
Thank you so much !