I just remembered that this forum supports spoilers!
Whoever wanted to see the curly arrows diagram for the mechanism, this is what I put.
Spoiler:Show
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OCR Salters Chemistry F335 12th June 2013 Exam revision thread watch
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Harantony
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- 12-06-2013 16:43
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suncake
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- 12-06-2013 16:43
(Original post by billybobs)
UNreactive
(Original post by billybobs)
What did people put for the question that asked suggest something about amino-acids in the comet?
Something to do with suggestion that life exists/existed because organisms create amino-acids? xDI wrote about "looking for life elsewhere in space" haha...
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- 12-06-2013 16:43
(Original post by Harantony)
I just remembered that this forum support spoilers!
Whoever wanted to see the curly arrows diagram for the mechanism, this is what I put.
Spoiler:Show -
stealth_writer
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- 12-06-2013 16:44
i put time instead of retention time. Is the word retention essential?
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fayemx
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- 12-06-2013 16:45
the maths killed me... i need an A... damnnn!!!
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- 12-06-2013 16:45
(Original post by stealth_writer)
i put time instead of retention time. Is the word retention essential? -
LOLAKALMAO
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- 12-06-2013 16:45
How many marks was the curly arrow question?
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- 12-06-2013 16:45
What did people get for the buffer solution calculations. Did u have to use [h+]= ka x acid/salt but we didnt have the concs of The salt given and even the acid conc was well back on the previous page.
what about the question where it said "NaOH was added so that it reacted with half of the m/ethanoic acid(can't remember) what is the change in pH now -
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- 12-06-2013 16:45
(Original post by LOLAKALMAO)
How many marks was the curly arrow question? -
stealth_writer
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- 12-06-2013 16:46
(Original post by Sujman)
I think so -
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- 12-06-2013 16:46
(Original post by stealth_writer)
i put time instead of retention time. Is the word retention essential? -
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- 12-06-2013 16:46
(Original post by stealth_writer)
i put time instead of retention time. Is the word retention essential? -
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- 12-06-2013 16:46
(Original post by LOLAKALMAO)
How many marks was the curly arrow question? -
stealth_writer
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- 12-06-2013 16:46
What did people get for the % increase Q?
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suncake
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- 12-06-2013 16:47
(Original post by Sam1357)
What did people get for the buffer solution calculations. Did u have to use [h+]= ka x acid/salt but we didnt have the concs of The salt given and even the acid conc was well back on the previous page.
what about the question where it said "NaOH was added so that it reacted with half of the m/ethanoic acid(can't remember) what is the change in pH now
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fayemx
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- 12-06-2013 16:47
(Original post by billybobs)
700 and something, 793 I think? -
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- 12-06-2013 16:48
Did anyone divide Ka by three for the neutralisation of half the acid question?
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- 12-06-2013 16:48
Any else get 180 as iodine number of very last question?
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- 12-06-2013 16:48
how many marks was all the mass spec worthy including the give the formula bit, i got it all wrong thought it was the highest peak, so maybe i miss ready the question
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- 12-06-2013 16:48
(Original post by Reina)
Did anyone divide Ka by three for the neutralisation of half the acid question?
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