EDEXCEL Topic 12 Acid-Base Equilibria REVISION

Complete revision for EDEXCEL A Level Chemistry. To buy the PowerPoint used in this video please visit my tes shop - www.tes.com/teaching-resource...

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I was on a c last year in chemistry and now I am achieving A and high a stars I couldn’t have done this without you

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awesome video.easily understood buffers and you made these things look very easy. thank you!!

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Glad you like them!

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Happy to help!

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Thank you very much Mr Harris. These are very very useful indeed. I hope you are well.

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cant thank u enough for ur hard work

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Thank you very much sir

[@shak8483]

at 29:00 isnt the conc of H+ ions = 2 x conc of acid instead of conc of acid = 2 x conc of H+ ions?

[@Dark_kittens123]

Yes

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Can you make vidoes of worked solutions of recent past papers of edexcel ial chemistry unit 4,5 and 6?

[@AliArif-yq5in]

Thank you so much for the video sir, It's an Absolute Life Saver. However I just have one doubt If you dont mind clearing up. At 1:22:29 Why is Dissociation of the Salt an equilibrium, Isn't it Fully Dissociating so It just be an Arrow point to the right. I'm Most probably wrong but it would be helpful if you could clear it up. Thanks alot

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Wow this was helpful

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thanks

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[@grace8301]

1:05:04

[@stardreamix786]

at 41:05 shouldn't the answer for the concentration of methanoic acid be 2.96x10^-11 moldm^-3 instead of 2.96x10^-3 moldm^-3

[@hanamostafa5268]

1:04:08 How here in weak acids you are saying that [H+]=[acid] isn't that only applies to strong bases and acids whereas the weak acids we use the Ka like u have explained in your slide in the green box in 34:38 ? Plz help :) But thanks soo much for your video and for your massive hard work , your videos help me to a great extent :)

[@stardreamix786]

yeah i was stuck here too, what would you say, would you say that [H+] = sqrt(Ka * [Acid] to rearrange for H+?

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my goat

[@jeffreylau2010]

I think at around 1:50:00 there's a typo - methanoic acid only has HCOOH, not CH3COOH - but it doesn't matter for the calculations right?

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the ads kinda ruin it but otherwise good job

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Not his fault