Chemistry Unit 2 Edexcel, Exam- 23rd May 2012
Chemistry exam discussion - share revision tips in preparation for GCSE, A Level and other chemistry exams and discuss how they went afterwards.
-
Re: Chemistry Unit 2 Edexcel, Exam- 23rd May 2012No I don't think so. I don't think that's on the spec.(Original post by The_New_Guy)
Guys,
Do we have to know about the mechanisms of nucleophilic substitution of halogenoalkane as SN1 and SN2?
-
Re: Chemistry Unit 2 Edexcel, Exam- 23rd May 2012Lol - unit 2 sucks.(Original post by shahlakh)
oh come on!!! i know u guys r gonna make out. i know u all r going to get A.
just chill and be cool
Belief matters a lot
work as much hard as u can
-
Re: Chemistry Unit 2 Edexcel, Exam- 23rd May 2012what you mean? is it easy?(Original post by Arusa01)
Lol - unit 2 sucks.
-
Re: Chemistry Unit 2 Edexcel, Exam- 23rd May 2012Yeh doing it, I am going over the book, right now I am on redox chapter, just covering things again, and I am sure by today I will have the book covered and start cracking the past papers tomorow.(Original post by Arusa01)
Some bits are ok, and then theres titrations
grrr.
Are you not doing the exam? -
Re: Chemistry Unit 2 Edexcel, Exam- 23rd May 2012
Sn1, Sn2, and a comparison between them. i wouldnt put too much emphasis on learning them. but it wouldnt hut to take a look at them, if you have time.
http://www.youtube.com/watch?v=3e0Sc...feature=relmfu
http://www.youtube.com/watch?v=Z_85K...feature=relmfu
http://www.youtube.com/watch?v=8J0ys3z5wzo -
Re: Chemistry Unit 2 Edexcel, Exam- 23rd May 2012Well good luck(Original post by UserInvalid)
Yeh doing it, I am going over the book, right now I am on redox chapter, just covering things again, and I am sure by today I will have the book covered and start cracking the past papers tomorow.
-
Re: Chemistry Unit 2 Edexcel, Exam- 23rd May 2012
http://www.mediafire.com/?emha8hc8xcyzo
THE LINK TO JAN 2012 unit 2 QP AND MS -
Re: Chemistry Unit 2 Edexcel, Exam- 23rd May 2012http://www.mediafire.com/?emha8hc8xcyzo there u go
-
Re: Chemistry Unit 2 Edexcel, Exam- 23rd May 2012it doesn't open(Original post by afserrahuman)
http://www.mediafire.com/?emha8hc8xcyzo
THE LINK TO JAN 2012 unit 2 QP AND MS
-
Re: Chemistry Unit 2 Edexcel, Exam- 23rd May 2012yolo loooooooooool(Original post by arusa01)
it doesn't open :s -
Re: Chemistry Unit 2 Edexcel, Exam- 23rd May 2012I think because you're measuring the amount in the pipette twice you're twice likely to get the error as +/-0.04 x2=+/-0.08(Original post by avatar 10)
Does anyone how how to do this question-
The enthalpy change of neutralization of an acid by an alkali is measured by adding
10.0 cm3 of hydrochloric acid to 10.0 cm3 of sodium hydroxide. 10.0 cm3
pipettes with an accuracy of ±0.04 cm3 are used to measure out both solutions.
The overall percentage error in measuring the total volume of the reaction mixture is.... i keep getting +and -0.8% when its meant to be + and -0.08%
-
Re: Chemistry Unit 2 Edexcel, Exam- 23rd May 2012Hahaa, Missed you man(Original post by Future Medics)
yolo loooooooooool
x
-
Re: Chemistry Unit 2 Edexcel, Exam- 23rd May 20120.8/10 ...(Original post by jadez_94)
I think because you're measuring the amount in the pipette twice you're twice likely to get the error as +/-0.04 x2=+/-0.08
just chill and be cool