pH titration curve exam question and content summary! || OCR A level Chemistry || pH curves

00:00 Intro
00:24 Coming up
01:10 Summary
03:49 Equivalence point
07:49 Indicators
09:33 Exam Question
22:45 Buffers
25:00 Thanks
Check out this pH calculation summary video!
• pH Calculations Summar...
Where else does pH come up in the A-level?
• How to measure pH? Wha...
Here is a year 1 playlist of my content:
• OCR CHEMISTRY (Year 1)...
Here is a year 2 playlist of my content:
• OCR CHEMISTRY (Year 2)...

[@WDS820]

Nice twist at the end

[@Ad1santosh]

this video is the reason i was able to smash that 5marker i owe you tons! was such a good paper!!

[@Ad1santosh]

this is brilliant - the textbook was so confusing for this part

[@mrmurraygreen]

Thanks very much

[@elliottmason5330]

So glad I watched this yesterday as a very similar question came up for OCR

[@mrmurraygreen]

Good! I’m desperate to see the paper

[@elliottmason5330]

@@mrmurraygreen I thought it was pretty easy overall. No really hard questions!

[@kiransumra5576]

Hi Sir,
Incredible video as usual!
As we are now 3 weeks away from the Chemistry papers, what would you recommend doing now to secure the best possible grades?
Thank you so much!

[@mrmurraygreen]

Hi - thanks very much!
I’d say about a 80:20 split between past papers and general self testing revision.
If there is anything you are still lost with theory wise, sit down with a tutorial or get in touch with your teacher 👨🏼‍🏫

[@benjy4539]

thank you

[@mrmurraygreen]

You're welcome

[@Naim54321]

Were we required to make the starting shape of the weak acid/Strong base curve to include the buffer region for all 3 marks? I didn't know so I drew it similar to a strong acid/strong base and wondering whether I would have lost marks for that

[@mrmurraygreen]

Most mark schemes don’t require it but it does exist - I feel like it’s a matter of time before it comes up 🧠

[@conconcon45]

Hi sir, ive finihsed all the chem past papers what would you recommend doing

[@mrmurraygreen]

I know this seems daft but do them again but be very strict with your ‘timings’ and exam conditions this time around. Don’t forget about the AS level exams which are very useful 👍🏻

[@chloeb6093]

Do we need to know how to calculate pka from it?

[@mrmurraygreen]

It’s not in the specification for OCR nor has it ever come up in their exams.
However - The AQA spec (if you do that course) says ‘students could calculate Ka of a weak acid by measuring the pH at half neutralisation’.
So it’s quite simple to do but seems to be a difference between exam boards.

[@chloeb6093]

​@@mrmurraygreenthanks :) yeah I do OCR so I'll ignore it