OCR A 5.1.3 Acids, Bases and Buffers REVISION

[georgiapactor]

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.

[sachinbhandari]

Thanks for the quality content that you provide for free.

[ellieves]

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

[tobimillar]

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

[yaseenm]

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

[strafeyfn]

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 YouTube 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

[bellastarmartin]

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 👍

[zo.]

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

[katiedapp]

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

[tabithasweeney]

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

[Letikx]

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

[rahanlol]

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

[isaacrobertson]

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

[Nasir-llkl]

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

[ding-dongditch]

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

[ba]

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?

[Harry-eszh]

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

[fbi]

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!

[phillipamuseva]

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?

[AfifaQuadri-gf]

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