GCSE Chemistry - The pH Scale & Strong vs Weak Acids (Higher Tier) #35

[@Cognitoedu]

If you’d like to practise the material covered in this video, check out our platform at www.cognitoedu.org - it's totally free, and has been built to make learning and revision as easy as possible. The main features are:
- Lessons organised by topic, only the lessons relevant to your specific exam board and tier are shown.
- Automatic progress tracking. Progress bars tell you what you’re doing well at, and what you need to spend some time on.
- Practise quizzes so you can test your knowledge. You can quiz yourself on any combination of topics you like.
- A huge number of fully-hinted questions that take you step-by-step through some of the trickiest calculations & concepts.
- A comprehensive bank of past exam papers, organised both by year, and also by topic.
Amadeus & Tom

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this channel is literally so helpful

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Anyone else here desperately revising for their assessments 😭

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Yep 😂😂

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Ola

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For my exam in the morning 💀

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Same.

[@adamsidat4766]

Same probably

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[@harshiniirvin9143]

THIS WAS SOOOOOOO CLEAR!!!! I was seeing every video for this topic but they weren't that clear. After seeing this, I feel like I got everything!!!!!!!! tysm

[@Cognitoedu]

Yay, thanks Harshini 😊

[@adamsidat4766]

This was a clear and precise explanation. It was also made fun and appealing to learn. Love to see it.

[@baluchippi]

@@adamsidat4766 yeah

[@boofang10]

Well explained !! Simple yet precise !! 😁👍🏻👍🏻

[@aleall8424]

Thanks for this explanation, very clear and understandable for Frenchies like me ;)

[@beidoumain4565]

yeah, for French people like me, english is soooo hard

[@shrishyalt]

Dear Cognito,
At 3:54 you said that the hydrogen ion concentration decreases by the factor of 10 to 3 times.
This made me think 10 X 3 instead of 10^3, so saying "10 to the power of 3 times" would set a clearer understanding.
Kind Regards,
Shrish

[@oneonefiveone8507]

you're just stupid

[@Kierannnn74]

thanks a lot, I have to sit in the back of my class but I don't get anything!!, this was really helpful

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I hope you failed

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this channel helped so much with my revision😆😆

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Thank you again. This is my favourite video on this channel. 😄

[@Cognitoedu]

Aha thanks Archjana! It’s genuinely mine too (I like how the colours turned out 👀) so you’ve got great taste 👌

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Bro taught my 1 hour lesson in 5 minutes

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#BestExplainationEver
Thanks for such a good explaination

[@Cognitoedu]

Hey thank you! And really happy to hear it was clear and helpful for you! Good luck with all your work

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One of the best channels on TH-cam

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Have you ever done a video on bearings?
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this aint maths

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And may I add : No stuid music, and a nice relaxed voice .

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How are you soo good! Thanks for the help, understood everything!

[@caoimhecrawford533]

thank you needed to catch up on a lesson I missed

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Very helpful thank you Cognitoedu❤🎉🎉😊

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My exams in 20 mins soo. This is my revision

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How was ur exam

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Thank you!

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[@arronpatter7851]

I still don't understand at all please help someone!!!!!!!!

[@glitchedout8079]

Strength = Amount of hydrogen released
Concentration = Amount of the actual acid in a solution
Idk if this helps?

[@arronpatter7851]

@@glitchedout8079 thanks

[@dr.arunyadav121]

Very helpful

[@dr.arunyadav121]

💓❤

[@Cognitoedu]

Hey Arun, thanks for the comment - really great to hear it was useful to you 🥳

[@IdreesM]

Have you done any videos on Titrations?

[@Cognitoedu]

We haven’t yet :)

[@davilgamer3567]

This is vary clear 👍

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who have a test tomorrow

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I've got one in a few minutes 😅

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You know it

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me

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got exam in 40 mins lessgoooo

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Have you done any vids on formation of salt crystals?

[@samuellopez9633]

Yes! The do it’s crystalization. Lesson 5

[@damianmackin793]

would hygegen be 0

[@AndyUren101]

Ye

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hydrogen*

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Here for home work

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what do u use to create the video or presentation?

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powerpoint premium combined with the paint application

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lol

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Do you have a video on mole concept
Plus thank you so much

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They do!!!!! check in playlists of chemistry

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Tomorrow is my mock exam pls pray for me

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I have my gcse in 30 min. I wanna die

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THanks

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real

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CO2o2

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I owe you a favor mate

[@easierenglish2081]

Plz sir speak a bit slower bcz we are not the native speaker of English

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He speaks VERY slowly

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You can change Playback Speed

[@eiryves8554]

that's not his fault lol? maybe you should watch a channel that speaks your language instead of watching an English based channel and complaining that he doesn't speak slow enough

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Me 0:13

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Chicken

[@changran5519]

thank you that was so helpful🥳👍✊🧠

[@andyryumugabe5783]

I owe you a favor mate