Yo guys! I wanted to add something important!!! 1. There should be a 2 mole coefficient in front of Fe(H2O)3(OH)3 and Al(H2O)3(OH)3 to balance up the equation, not sure how I goofed on this, I even got it correct in the practice question. My bad guys!!! 2. Although [Fe(H2O)6]3+ (aq) true colour is purple/violet/lilac, in solution it often forms [Fe(H2O)5(OH)]^2+ (aq), which has a yellow-brown colour. This complex has lost 1 H+ ion when reacting with H2O in the solution. Please see this information from chemguide if you want more detailed information and understanding! (do a CTRL+F search for 'in practice' subheading) www.chemguide.co.uk/inorganic/complexions/acidity.html#top Thanks to the subscribers 'I know I'm wrong but,' and 'DY' for bringing these up 🙏♥

@faizananwar571

Жыл бұрын

U are truly a boss man

@easymodeexams33

Жыл бұрын

@@faizananwar571 hahaha thanks man :)

@shaeldn6004

Ай бұрын

was just about to ask this lolll but thanks !!!

@MariamNuhu-fc9vz

Ай бұрын

sorry but im a bit stupid where exactly should there have been a 2 coefficient ?

@chu2000

Ай бұрын

@@MariamNuhu-fc9vz same i dont know where? i wrote all these equations out months ago and just saw the comment now

im actually very pissed off that i only found about you now, youre actually the goat of chemistry youtube videos.

@easymodeexams33

Жыл бұрын

sorry u didn't find me sooner :( hahaha that made me smile, thanks

Brilliant video! Thank you for summarising and explaining so well!! Perfect revision resource :DDD

This is amazing, thank you so much I’ll come back to watch all this asap!! And also all the other walkthroughs 🙏🙏

@easymodeexams33

Жыл бұрын

Thnx for the kind comment, appreciate it :)

Yesss this is perfect thank you for this🙏

you are amazing! thank you so much :)

Omg I needed this so much. I always do bad on these questions. Thank you so much!

@easymodeexams33

Жыл бұрын

no worries! Just keep revising and you've got this 💪😁

So helpful ❤

Thank you , sir.

all your videos are so helpful thank you so much

@easymodeexams33

Ай бұрын

thanks, glad you find them helpful :)

Tysm ❤️

Thanks, Bless

thank you soooooo much for this

@easymodeexams33

Жыл бұрын

no worries :)

Thanks you soo much your videos r realy great

@easymodeexams33

Жыл бұрын

thnx :)

what a guy thank you man

@easymodeexams33

2 ай бұрын

no worries :)

my saviour tysm!!!

@easymodeexams33

Ай бұрын

No problem 😊

I’m doing OCR chemistry, your videos are still helpful. But seems like aqa is actually quite different than our spec, idk 😊thank you

@easymodeexams33

2 ай бұрын

It can be different in certain areas yeah! Just keep an eye on the specification for OCR A. There are some very good OCRA KZread channels for chem too :)

Could you do a video on the practical skills questions not specific practicals but like suggest an improvement to …. Or how to refuse percentage uncertainty for …. I’m stuck getting around 80-84 on papers just missing out on an A* on each paper I keep dropping practical skills marks

@easymodeexams33

Жыл бұрын

That's an interesting one! I'll do my best to get it out before paper 3 :)

@asalchegeni4926

Жыл бұрын

@@easymodeexams33 please that would be so helpful and thank you so much for all these videos !!! ❤

the goat

quick question for 2:48 why do some resources say [Fe(H2O)6]3+ is a yellow solution? instead of purple

@Blxq

Жыл бұрын

It’s acc purple but it gets oxidised in the air Abit

@easymodeexams33

Жыл бұрын

Good question! In hindsight it was silly of me not to mention this... yikes! Although it's true colour is purple/violet/lilac, in solution it often forms [Fe(H2O)5(OH)]^2+ (aq), which has a yellow/orange/brown colour (varies in strength of colour). I will make a comment and pin it so you can see a more detailed response. Sorry about that!

@iknowimwrongbut4491

Жыл бұрын

@@easymodeexams33 thank you so much, this was something that confused me for ages but now it makes so much more sense😃

@easymodeexams33

Жыл бұрын

@@iknowimwrongbut4491 my pleasure :)

goat

Hello sir,thank you for your amazing lessons , i was wondering if you could do tutoring ?

@easymodeexams33

2 ай бұрын

Thanks, I appreciate it :) Sorry, I don't tutor any more, good luck though!

At 00:52, why did you say there are 2 M2+ ions and not 3 including Co2+ (cobalt)?

@easymodeexams33

Жыл бұрын

it is only 2 for AQA, you can check the specification if you want, page 48 :) filestore.aqa.org.uk/resources/chemistry/specifications/AQA-7404-7405-SP-2015.PDF

I saw in some papers in physics and maths tutor Qs you need to learn chromium colour changes . Do we still need to learn that ?

@easymodeexams33

Жыл бұрын

Physics and maths tutor actually use a lot of legacy past paper questions (2009 - 2015 specification), I assume it's to avoid copyright. this is the specification I did and you needed to know the Cr colours back then, but I am almost certain it is absent from the current spec, I have never seen it in any transition metal or aqueous ion questions.

at 5:00 can i put the cu(h20)4(OH)2 in squared brackets?

@barna8759

Ай бұрын

Not sure if its penalised but you do only need to put the square brackets if theres an overall charge

With Aluminium's reaction with a base shouldn't there be 4 moles of OH? 11:04

@jahanzaibullah9098

Ай бұрын

thats only if you react the hexaaqua complex of aluminium with excess oh, he used the white ppt and added oh

Do we need to know about flame test colour for the exam?

@easymodeexams33

Жыл бұрын

nah that's only GCSE. If you're curious about anything you can always ctrl+f the specification and search for key words

@gaanavmanyam9214

Жыл бұрын

@@easymodeexams33 oh ok thank you. Just wanted to double check as it was mentioned in my lab book.

21:50 i was doing some past paper questions and saw there should be a 2 before the brown precipitate of Fe3+ (and also Al)!!

@easymodeexams33

Жыл бұрын

You are 100% correct! You need the 2 moles to balance it up, sorry about that, not sure how I goofed! I even wrote it the correct way in the practice question 😅😂

we dont need to learn the Cr colour changes?

@easymodeexams33

2 ай бұрын

This is the updated colours document I used: filestore.aqa.org.uk/resources/chemistry/AQA-7405-REACTIONS-OF-METAL-IONS.PDF

smelly stinky topic I hate it!😣