Guys please help me, I can't seem to name any thing. I can't name one single thing, I find it so hard to find a pattern with how to name so and so and now I'm going over esterification and esters. Naming things has been a nightmare, people have explained but I still don't get it.
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jontypickles
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- 02-06-2015 08:22
For naming esters, the way I do it is the is somthing-anoate is always the carboxylic acid with the something-anoic acid on the end because both the ends are weird. For the first part which is something-thyl, it will always be whatever else your reacting, for example, if you react propanoic acid and ethanol in the presence of an H2SO4 catalyst, the organic product will be ethyl (since ethanol is the other thing or alcohol) propanoate (because propanoic acid is the carboxylic acid).
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ilovereading
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- 02-06-2015 08:32
I would just like to declare in advanced that I am utterly ****ed for my Chemistry exam this afternoon. Sigh, better start preparing for retakes next year :L
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samwillettsxxx
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- 02-06-2015 08:33
(Original post by thymolphthalein)
Wouldn't that be nucleophilic substituition, if it was a nucleophilic attack?
It would come from the side that the halogen is not on.
Elimination is when halogenoalkanes undergo a reaction with NaOH(or another alkali) to form an alkene, Sodium Halide and water.
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- 02-06-2015 08:36
when we purify aluminium why do we put ticl4 in an argon atmosphere?
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samwillettsxxx
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- 02-06-2015 08:39
(Original post by ashiekh)
when we purify aluminium why do we put ticl4 in an argon atmosphere?
Edit: just checked to prevent side reactions with oxygen and nitrogen in airLast edited by samwillettsxxx; 02-06-2015 at 08:41. -
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- 02-06-2015 08:43
(Original post by samwillettsxxx)
To prevent side reactions I think
Edit: just checked to prevent side reactions with oxygen and nitrogen in air -
thymolphthalein
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- 02-06-2015 08:44
But the equation is correct.
It would form an alkene and Water and Halide ion (from the salt I mentioned earlier)
If there are unsymmetrical haloalkanes, it can form isomeric alkenes because you can shift the double bond. -
samwillettsxxx
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- 02-06-2015 08:45
(Original post by thymolphthalein)
Ah yeah, that is elimination. I think your arrows are correct, we were never taught to draw the mechanism for it.
But the equation is correct.
It would form an alkene and Water and Halide ion (from the salt I mentioned earlier)
If there are unsymmetrical haloalkanes, it can form isomeric alkenes because you can shift the double bond.
I do AQA, maybe u do OCR or something that's why you don't have to draw it maybe? -
TheonlyMrsHolmes
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- 02-06-2015 08:47
(Original post by ilovereading)
I would just like to declare in advanced that I am utterly ****ed for my Chemistry exam this afternoon. Sigh, better start preparing for retakes next year :Llike completely and utterly FAIL.
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thymolphthalein
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- 02-06-2015 08:48
(Original post by samwillettsxxx)
I do AQA, maybe u do OCR or something that's why you don't have to draw it maybe?
Found this on chemguide though. -
samwillettsxxx
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- 02-06-2015 08:51
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(Original post by ilovereading)
I would just like to declare in advanced that I am utterly ****ed for my Chemistry exam this afternoon. Sigh, better start preparing for retakes next year :L
I've already prepared to drop Chemistry at AS, there's no way I can take this in A2 while re-sitting AS papers. -
TheonlyMrsHolmes
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- 02-06-2015 08:54
(Original post by Cherry82)
Same. It's so sad that I can't even do the basics...
I've already prepared to drop Chemistry at AS, there's no way I can take this in A2 while re-sitting AS papers.it makes me feel a tiny bit better knowing we can empathise with each other.
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- 02-06-2015 08:56
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- 02-06-2015 09:03
(Original post by TheonlyMrsHolmes)
I am so glad people on TSR feel the same!it makes me feel a tiny bit better knowing we can empathise with each other.
I know I'm getting an U or an E if I'm lucky but I'm not going to give up. I wish I had worked harder throughout the year in terms of practice and organisation. But like I had said previously, if you have studied you'll be fine and I mean that. Anxiety can sometimes make us feel worse than the situation really is, I know because I deal with anixety all the time but after I realise it wasn't as bad. -
ilovereading
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- 02-06-2015 09:04
And I cant even say that my unit 1 chemistry paper might compensate because I KNOW I failed that. Its the worst because it took me ages to convince my Chemistry teacher to predict me an A for this med course I was applying to (didnt get it anyway) and in the most recent mock I also got an A so getting a D/C will literally depress me so much especially the disappointment...
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thymolphthalein
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(Original post by ilovereading)
And I cant even say that my unit 1 chemistry paper might compensate because I KNOW I failed that. Its the worst because it took me ages to convince my Chemistry teacher to predict me an A for this med course I was applying to (didnt get it anyway) and in the most recent mock I also got an A so getting a D/C will literally depress me so much especially the disappointment...
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ilovereading
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- 02-06-2015 09:06
(Original post by Cherry82)
Same. It's so sad that I can't even do the basics...
I've already prepared to drop Chemistry at AS, there's no way I can take this in A2 while re-sitting AS papers. -
ilovereading
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