I have said I was not going to produce a practical revision guide. My own pupils have persuaded me of the case to do something though.
I have taken existing relevant notes and arranged them in basic order of syllabus/required practicals. In addition I have added more detailed descriptions of the methods for the various practicals.
I have also added practicals that are not required but I think are important to know.
I have not necessarily used the exact ‘exam board’ methods.
There is an AQA Practical Guide -aqa
An OCR Practical Guide OCR version.
An edexcel Practical Guide Edexcel version
Thank you so much for this! The Edexcel practical guide is a lifesaver!
Thank you for your fantastic resources! Especially the practical guide. In required practical number 10, we used sodium hydroxide, sodium carbonate and silver nitrate. In your guide, you talk about the chemistry of carbonates and hydroxides but don’t mention about the silver nitrate solution? That is the bit I am stuck on….??? Can you explain please? Thanks
Silver nitrate is to test for halide ions. This is explained in practical 4.
For the section on finding Kc from an equilibrium mixture on the AQA practical guide. Why do you not take in to account the fact you only titrated a 25cm3 sample of the reaction mixture in your molar calculations?
Very good spot- that is an oversight. I have changed it
Does the dilution not need to be taken into account for the moles of acid as well?
In this case when I gave the initial moles of acid catalyst it would have been right at the beginning and not the moles that would have been in the conical flask during the titration .
Sorry I meant acid catalyst
I love you
Thank you so much for adding the practical guides! As I’m doing edexcel would you recommend using the OCR or AQA version?
I have just added the Edexcel version so you can use that one now
Hello! Thank you so much for taking the time to make these resources. They’re truly excellent and invaluable for revision. Just wondering, in the AQA practical guide it says that a test for OH-ions is that they are alkaline so turn blue litmus paper red. Shouldn’t this be that they turn red litmus paper blue? Or am I making a silly mistake? Thank you!
Good spot. Mixing up of colours. Have now changed
Dear Mr Goalby
What exactly do you mean by ‘exam board practical’
My reference was to ‘exam board methods’. All exam boards issue example methods that schools could use to do a practical. There are often slightly different methods from other sources. These are still valid. In addition there are various different experiments that could be used to test ‘distillation’ or ‘purification of liquids’.
Thank you for adding this!
Do you really need to know all that about Spectrophotometry?
Maybe yes maybe no. It has come up in the past but how much detail is unknown with this new syallbus .
thx a lot
Thank you so much!! I sincerely appreciate it!
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