1:01:31 for buffers

I just accidentally skipped to the OCR Acids and Bases vid instead of AQA and has a major panic hahaha. 'Who the hell is Lavoisier and what the hell has he done with Bronsted-Lowry?! '😂 Thank you so much though for your videos, I cannot explain what a difference you have made to self-teaching. Fingers crossed for the exams now! Thanks again.

Thanks for the quality content that you provide for free.

I was so confused on this topic before I found your video. Thank you so much for creating this online resource !!

youre a life saver! I'm roughly a month off my exams now and I'm really feeling the pressure now.

A week away from exams - thank you, the video has helped a lot!

Hi there Just want to say thank you. Having a really hard time understanding some calculations in this topic and this really helped relieve a lot of that stress so i can go away and be able to practice them. It's the first time i've used a KZfaq video to help (I didn't think it would work) but it has helped me loads so you have gained a new subscriber :). Thanks again

I’m doing CCEA such a great help!! Thanks

Brilliant video as always

Sir honest you're the reason I'll get A* in chemistry because these videos are so much more helpful than my own classnotes😮.Thank you so much I now understand this topic.Keep up the great content 👍

I LOVE YOU SO MUCH THANK YOU FOR HELPING ME FINALLY UNDERSTAND

thank you sir you absolute legend

Thank you so so much for these videos! They're so helpful! :)

Appreciate your hard work!

my teacher didn't even teach the PH changes ... thanks for these videos

Thank you so much!!!

the best videos !

33:28 equation should read [H+] = 2[Acid]

GREAT VID THANKS

Amazing , thanks sir

Thanks Sir.

For diprotic acids isn’t it 2x[acid]=[H+]

Hello amazing video by the way, really informative!! I think at 21;35 I think I spotted a mistake you wrote "strong acids dissociate almost completely destroyed as it's dissociate poorly" but I think you meant weak acid am i right?

Hi Sir, I think there is a mistake on the acids and bases slide it should say weak acids dissociate poorly instead of strong. 🙂

So helpful thank you!!!!! :)

Goat, thank you

Thank you🙏

thanks

Thank you so much for this. I was just wondering why sometimes (A)- represents the number of moles added eg if 5 x10-3 moles of NaOH are added, I am sure that sometimes I have seen that the conc of (A)- becomes just 5 x 10-3/vol, but other times, like your example, why does (A)- increase or decrease in moles eg why are moles added to the moles of (A)- when NaOH is added

Is calculating the pH change of buffers in the OCR A spec, because I can't find it there or in the book?

Does this cover the whole spec for chapter 20

At the end on the uses of buffer bit, does the carbonic acid dissociate differently for the 2 different reactions?

Hi sir, do your videos completely cover the new aqa spec? and also how can i rearrange the videos to make it in line with the spec? thx sir i have an exam at the end of the month and i don't like the textbooks so your channel look like a great help!

18:17 - Isn't water acting as the acid as it's donating a proton and B acts as a base as its accepting a proton?

How can we know whether an acid or base completely ionizes or not?

Thank you

At 17:25 you say that BH+ is the conjugate acid because it’s a proton donor? Did you mean to say proton acceptor?

When calculating the change in ph of a buffer when adding a strong base, how do you calculate the moles of acid and salt after it’s been added?

Is this for AS year 1 aswell

on 20;31 do u mean strong acids ionise completely and weak acids dont cause seems like u repeated the same sentence twice

hi