Edexcel A Level Chemistry 2019 Paper 2 June 11th 2019 Unofficial Mark Scheme

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mrwonderturtle
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Exam is tomorrow, just getting things started and people can come and post answers or questions afterwards
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Munrhe
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Anyone any idea about the flavanol structure of the Ester that we were meant to draw?
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Eumaps
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I drew the oxygen attached to an ethanoic molecule
(Original post by Munrhe)
Anyone any idea about the flavanol structure of the Ester that we were meant to draw?
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Evil Homer
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Thanks for making this! How did it go today guys?
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Munrhe
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Ah, I thought we had to do the whole flavanol structure and somehow make an Easter out of it
(Original post by Eumaps)
I drew the oxygen attached to an ethanoic molecule
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RudelyHonest
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That was probably, by far, the worst paper I did
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JCGETTINGLUCKY
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hey can u make a poll pls
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Munrhe
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Apart from the six marker flavanol drawing part, it seemed easy and much less time pressure than paper 1. Everyone at my college seem to agree which means that I think a lot of high scores with this paper so all relative
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Eumaps
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(Original post by RudelyHonest)
That was probably, by far, the worst paper I did
Agreed
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Munrhe
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Apart from the six marker flavanol drawing part, it seemed easy and much less time pressure than paper 1. Everyone at my college seem to agree which means that I think a lot of high scores with this paper so all relative
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Karam-Mohammed
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Harder than paper 1
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mildhan
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(Original post by Munrhe)
Anyone any idea about the flavanol structure of the Ester that we were meant to draw?
The 4 compounds were ethanoic acid, ethyl ethanoate, flavan-3-one (the OH group oxidises into a ketone), and the last one is where the OH group in flanvan-3-ol become part of an ester with ethanoic acid, don't know how to name it though.
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slily
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Omg same that is the only question that completely drew off.
(Original post by Munrhe)
Apart from the six marker flavanol drawing part, it seemed easy and much less time pressure than paper 1. Everyone at my college seem to agree which means that I think a lot of high scores with this paper so all relative
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Munrhe
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Thank you very much
(Original post by mildhan)
The 4 compounds were ethanoic acid, ethyl ethanoate, flavan-3-one (the OH group oxidises into a ketone), and the last one is where the OH group in flanvan-3-ol become part of an ester with ethanoic acid, don't know how to name it though.
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laca123
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i found this harder than paper 1 but think ive done better in this lol
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tesconyc
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That was so bad. I want to cry
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Photsonex
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That's 5 though, was it 4 AND one with a fruity smell? I read it as 4 compounds, one of which had a fruity smell?
(Original post by mildhan)
The 4 compounds were ethanoic acid, ethyl ethanoate, flavan-3-one (the OH group oxidises into a ketone), and the last one is where the OH group in flanvan-3-ol become part of an ester with ethanoic acid, don't know how to name it though.
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Karam-Mohammed
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What was answer for the impurity question
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Sum Mmed
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mass of carbon 1.7g
k=3.0something mol^2dm^-6s-1
also the last mechanism? i didnt see it in our textbook?
what did you guys circle for 4.8ppm?
Last edited by Sum Mmed; 1 year ago
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za1341
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wasn’t it 3.8ppm? and i circled the ester C-H-O- bond.
(Original post by Sum Mmed)
yield 60.3%
mass of carbon 1.7g
k=3.0something mol^2dm^-6s-1
also the last mechanism? i didnt see it in our textbook?
what did you guys circle for 4.8ppm?
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