OCR A 5.3.1 and 5.3.2 Transition Elements and Qualitative Analysis REVISION

[moayadgriwi]

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

[belsfoster]

this was so so helpful, I didn't understand this topic at all until I watched this video - thank you SO much

[fayee]

you're literally a LIFE thank you much

[a.a]

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+

[zkillerwolfz]

It's ridiculous to expect us to memorise all those colours...

[CHLOE-lcdw]

he saved my life this chemistry video is brilliant!

[ASprinkleOfRandom]

16:05 - the spec does say Cu2+ catalysing the Zn reaction but the first reaction you meant Mn instead of Cu :)

[em]

at 21:54 isnt Mn2+ light brown with OH and NH3

[talhabashir]

doesnt ethanedioate have a snigle covalent bond between the carbon atoms

[Anonymous-rweq]

this is such an excellent video thank you for all your effort! well appreciated:))

[malanhemal]

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!

[blegh]

At 51:31 the Fe2+ was not multiplied by 2 on the RHS :)

[Pablo-fsjp]

Really great and understandable session, thanks!!

[amaankhan]

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.

[rosia_li]

really helpful video thanks! I think in my textbook it says the ethanedioate doesn't have a double bond between the two carbons tho!

[Exilary_TKL]

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

[Ahmedraza-fyox]

Chromium is violet when in aqueous solution no?

[okiamyacine]

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

[ahmedsheraz]

Allery Chemistry at 51:29 why is Iodine being oxidised isn't it gaining electrons ?

[milliebrar]

Thank you so much! All is not in vain! By the way, do we have to memorise the Complex Ions Solution Colours table?