AQA A level Chemistry Required Practical 5 - Distillation
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- Опубліковано 18 жов 2024
- Can you describe how to separate a product such as a ketone using distillation? Could you write a 6 mark method for it? Let me show you how.
This video is part of a series of exam question walk throughs, centred on the Required Practical Activities for AQA A-level Chemistry. (A lot of these are also PAGs for OCR, but the numbers are different e.g. Rates of Reaction is 7a and 7b for AQA but 9 and 10 for OCR). You can find all these videos in my Exam Walk Through playlist at bit.ly/DrdBWal...
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THIS IS MY ONLY REVISION FOR PAPER 3
surely u failed?
@@dfszf4743 got a C and got into my firm choice with a medicine transfer option 🥸
@@dfszf4743 this videos everything you need wdym
What grade did you get?
Did u cook or get cooked?
this was fantastic! do you have any predictions of questions which may be in paper 2 aqa tomorrow?
Not a sausage! I co-teach A-level with a colleague who is fantastic at organic so I let him worry about Paper 2 (so I couldn't even tell you what came up on Paper 2 in previous years as I only ever mark 1 and 3!)
If I just learn these steps will that be enough for me to do any questions. Like I can just work out what the gaps will be or can write these same steps for a different question along with drawing the apparatus.
There are other things you could be asked, but I'd say this is a very good first step!
@@DrdeBruinsClassroom thank you. I really struggle with paper 2 and the exams in two days so just hoping the papers not to bad.
Qasim pattern up
Thank you for the video! Although I am a little confused as to when to use reflux or distillation as I thought that all secondary alcohols are oxidised to ketones using reflux?
Reflux is to make the reaction happen. Distillation is to separate out the product from any leftover reactants / other products
@@DrdeBruinsClassroomthank you, that makes sense
If this was a 6 mark question, could you just draw the apparatus?
You could probably get close since it's describe, not explain, but you'd need to do a lot of thorough labelling
@@DrdeBruinsClassroom Thank you Miss, I would do both to ensure I get full marks, thank you for your feedback.
Thank you so much for this!
is this simple or fractional distillation? I have two different methods and apparatus in my book for each.
If you're just removing one component of the mixture (like in this question) then it's simple distillation. If you're removing multiple components (like when distilling crude oil) then it's fractional distillation.
U the best🐐
Is this practical part of the AQA Year 12 Alcohols topic?
Yes, it comes under the elimination subheading in the spec
why does butanone only have van der waals and not dipole-dipole interactions
It doesn't. I just had a moment of madness and missed out "and dipole-dipole interactions"
Could you draw and label the apparatus for 6 marks?
I’m gonna for reflux or distillation
I’m gonna for reflux or distillation
1:35 did you mean “transfer reactants” ?
No. The reactants have already reacted "before the question starts". So you are transferring the reaction mixture (i.e. the soup of products that you are about to distill).