Edexcel ial chemistry unit 3 january 2020 Watch

Mash_rocks
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How was the exam??
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student3692
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(Original post by Mash_rocks)
How was the exam??
Hey, personally i didn't find the exam too hard. What did you get for the percentage purity question? I got 56 point something percent. How did you find the paper?
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noora120903
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for the uncertainty in temp, did u use 7.8?
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Mash_rocks
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(Original post by noora120903)
for the uncertainty in temp, did u use 7.8?
Yess
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I got the same thing.
I wish I had studied better...
what did u guys write for the differentiating btw alkane and alkene with potassium permanganate?
and the change observed of bromoethane after dehydrating?
and how to remove the aqueous layer?
I just wanna confirm my answers
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was ur enthalpy change -463 kJ/mol?
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student3692
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(Original post by : ).)
was ur enthalpy change -463 kJ/mol?
Yes I got that as well
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noora120903
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(Original post by : ).)
I got the same thing.
I wish I had studied better...
what did u guys write for the differentiating btw alkane and alkene with potassium permanganate?
and the change observed of bromoethane after dehydrating?
and how to remove the aqueous layer?
I just wanna confirm my answers
alkene changed from purple to colourless
alkane had no reaction
bromoethane changes from cloudy to colourless
remove the stopper after shaking and open the stopcock to remove the aqueous layer
Last edited by noora120903; 4 weeks ago
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