These videos are so so helpful, I know you get appreciative comments all the time but it can not be stated enough how much of an impact you have on students and their grades, if I do well in my exams then you get half the credit (:

@AlleryChemistry

Жыл бұрын

Thanks for your kind words. I'm pleased the videos are helping and I hope you get a decent grade on the back of it. 👍

I always feel more confident after watching your videos. The NO PROBLEM acronym was so helpful man, thank you!

Allery Chemistry the GOAT

Thank you for all the hard work

@AlleryChemistry

4 жыл бұрын

No worries!

You are actually more than amazing. After watching your videos they make me literally put the topic in the safe side.

thank you so much for this you've really saved me! I have a high stakes exam in this tomorrow and since we were taught this over lockdown through home learning, I haven't understood a thing! So grateful I now am on track, thank you!

@idontknow1630

3 ай бұрын

how did it end up going for you in the end?

Thank you so much for all the thought and effort you put in; this was incredibly helpful!

Your videos are what gets me through chemistry, thank you for all your hard work.

You've taught me more than my teacher has in a year, thanks a lot!

This video is absolutely amazing. Thank you so much helped me understand the whole thing in an hour

this is amazing!!! your channel is the perfect revision resource :)

@AlleryChemistry

3 жыл бұрын

Glad you think so!

Thank you for making this free.

really well done ppt. cheers

Your video is absolutely amazing! I can't thank you enough for all your hard work! I do have a question, so you mentioned that electrons will always flow from the most reactive metal to the least reactive metal. So I'm a little confused whether we look at them in terms of a reactive the metals are or in terms of e values?

i'm so excited

thank you so much for these videos

@AlleryChemistry

4 ай бұрын

Glad you like them!

Thanks for practicaly teaching me this topic sir

very helpful video, would suggest maybe putting some exam questions up so people can pause and try them throughout

Love you work bro👌

@AlleryChemistry

4 жыл бұрын

Thank you so much 😀

thank you very much sir .

@AlleryChemistry

2 ай бұрын

You're welcome 😊

At 57:20, doesn't increasing the concentration of Fe cause the electrode potential to become more negative?

@alexswarbrick984

3 жыл бұрын

Yep, you're right

@shaswathansanjeevvijay5500

3 жыл бұрын

I was thinking the same thing and went into the comments to find someone saying the same thing.

@neithonosmani9783

2 жыл бұрын

Why do you think it becomes more negative?

@potatomaster1836

2 жыл бұрын

@@neithonosmani9783 I think it’s because increase Fe(s) conc shifts equilibrium to LHS so there’s more e-

@cen1279

Жыл бұрын

Yeah, I thought this too

What about in excess alkali?

Do you always flip the more negative equation?

At 57:20, if you increase the concentration of Fe, the equilibrium would shift left therefore increasing the electrons in the system, wouldn't that make the electrode potential of Fe2+/Fe more negative and hence overall cell potential would be higher?

@bLue-xx1uy

Ай бұрын

Also increasing the concentration of Fe solid doesn't sound quite right, I think when we state that altering the concentration affects the E0 value: it is only about altering the concentration of the aqueous ion solution or the pressure if the system involves gases?

@Askodaicjosjcioejf

Ай бұрын

idk i thought that too

These videos are very helpful thank you very much. I just have a question. what could they ask in an exam in the 1-3 marks questions on these topics. e.g. why is an excess of KI added? for redox and electrode

LEGEND

Are the steps for the hydrogen fuel cell part of the spec?

Thanks for saving me during exam season -

Can you please make a playlists of year 2 edexcel presentations while you make in it after you finish with ocr,thanks 😊

@AlleryChemistry

4 жыл бұрын

Yes. Please vote via twitter. twitter.com/allerytutors/status/1258408810714140672?s=20

WHy doesn't the colour of fe2+ show in the solution as i thought fe2+ is a green solution so technically shouldn't the green colour mix with the purple colour from Mn04-

When will you be doing these for A2 chemistry AQA??

@AlleryChemistry

4 жыл бұрын

Yes. Please vote via twitter. Thanks. twitter.com/allerytutors/status/1258408810714140672?s=20

the fuel cells ... are we meant to know the whole process 1 through 9

sir when do you apply the anticlockwise rule to obtain a full redox equation for two half equations?

@AlleryChemistry

10 ай бұрын

When you want to establish what the overall feasible reaction is. 👍

hi doe s anyone know why the electrons from from the anode to the cathode rather than the other way round?

@layanfiras7539

2 жыл бұрын

At the anode the compounds are oxidised so they lose electrons and at the cathode they are reduced so they gain electrons. So the electrons must be supplied by the ones losing electrons and so they move from the negative anode to the positive cathode

@user-go7jv8cl1u

4 ай бұрын

hello mahamad dahir

thank you

@imanawan5630

Жыл бұрын

It’s fine dw about it

@aanyasetia6572

Жыл бұрын

You're welcome

nice

are we supposed to know the colour change for our exam at 13:26?

@yabombo8145

2 жыл бұрын

yeah you have to learn em for transition metals anyways g

At 25:08 is 5I- the oxidising agent or I03-

@hmm...jesusisking

3 ай бұрын

IO3-

40:47

do we need to know about cell notations sir it isnt directly stated in spec. Thanks for the videos sir