Acids and Bases - Buffer Solution Calculations

Acids and Bases - Buffer Solution Calculations｜A-Level Chemistry

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Күн бұрын

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@easymodeexams33 7 ай бұрын

[HA] = 0.0389, not 0.00389!!! My mistake. [H+] and final pH is correct in the video, but I wrote the [HA] incorrectly. 👉 Get my help with Chemistry Tuition → www.easymodeexams.com/ 👉 Boost your Chemistry Grade in my FREE Community → bit.ly/chem-community

@IbrahimHassan-hf2ir 10 ай бұрын

Can you please do more of the Everything You need to know Topic style videos please. They are so helpful. Thank you for everything that you do for us. You are the best chemistry account out there.

@easymodeexams33 10 ай бұрын

Fosho

@angel-lh8sh 10 ай бұрын

OMG YOURE A LIFESAVER!! JUST IN TIME FOR ME TO GO OVER THIS TOPIC AFTER COVERING IT IN CLASS🤞🏾

@balajipalaniappan6804 10 ай бұрын

Awesome, thanks, is there a video doing pKa and those pH curve graph questions

@easymodeexams33 7 ай бұрын

This should be the one: kzbin.info/www/bejne/oKObcpuNfNFja5I good luck :)

@daisylawrence7447 8 ай бұрын

8:45 so for buffer calculations do you always minus OH- from the acid because in buffers the equilibrium always shifts right? also thanks for such helpful videos!

@daisylawrence7447 8 ай бұрын

does this calculation basically give you the unreacted CH3COOH value?

@oliviaa6412 7 ай бұрын

Pls lmk if you ever find out the answer as I’m wondering the same thing

@shennybenny7347 4 күн бұрын

Yo does the henderson hasselbalch equation work for this question? I tried using the equation but it didnt get the correct answer, or maybe I did some workings wrong

@Charisse_ 10 ай бұрын

With example 1. Did we have to work out the moles because the concentrations given initially is what they were *before* they were mixed so you can’t just use those concentrations and put them into the ka equation ?

@easymodeexams33 10 ай бұрын

Exactly! :)

@spitefulsaiyan4690 10 ай бұрын

Thank you!

@RayLe-bd3xp 10 ай бұрын

Hi when are u going to release aqa biology paper 2 analyses please

@easymodeexams33 10 ай бұрын

Should be in next couple weeks 🤞

@daisylawrence7447 6 ай бұрын

if the question tells you what the buffer solution contains, does this mean you don't need to work out final moles because the buffer has already been formed and the reaction has happened?

@easymodeexams33 6 ай бұрын

I've never seen a question in that format tbh, they will normally tell u starting variables, and you calculate final buffer variables

@gianne7391 9 ай бұрын

hi is there any point in still dividing it by the total volume? especially as they still cancel out?

@easymodeexams33 9 ай бұрын

Yeah you can skip that step :)

@gianne7391 9 ай бұрын

@@easymodeexams33 thanks for your help! your videos are really good, I got an A* in my recent test :)

@evlaar280 7 ай бұрын

I'm confused by your value for [HA] I did 0.00175/45/1000 and got concentration as 0.0389 but I don't know how I've got a power of 10 error when I used the same numbers as you

@easymodeexams33 7 ай бұрын

100% correct bro, should be 0.0389, my mistake. Everything else should be correct. I'll leave a pinned comment, cheers