Talk

Advanced search

chemistry A level help please

(12 Posts)
stitchtime Thu 20-Aug-09 23:56:25

Does anyone teach Alevel chemistry or higher? i'm trying to do a test with equivalent level chemistry, and am completely stuck on some things. books are no help, as i dont understand. can anyone help me please?
tia

stitchtime Fri 21-Aug-09 00:00:37

2 methyl 3 butanal.. i hope i have the naming right. no i dont, coz its not an aldehyde, its a ketone. bugger. not sure how to name it now, or how to get the picture onto mumsnet.

why does it become a chiral molecule if hydrogentated in the presences of a nickel catalyst.

vinblanc Fri 21-Aug-09 13:52:52

If it's a ketone, it will end in -one.

No idea about your question thought

TheFallenMadonna Fri 21-Aug-09 14:02:11

Do you know what chiral means? Sorry, trying to work out where you are!

Harimosmummy Fri 21-Aug-09 14:05:55

If it's a ketone, it's 2 methyl 3 butanone,

Chirality means non superimposible mirror images (hands are the best 'human' analogy of this)

Hydorgenation leads to the formation of a primary amine(via imine)
hte catalyst basically means it's more favourable for the hydrogendated products to exist.

More information on the overall question would help?

I can tell you HOW it becomes a chiral molecule....

stitchtime Sat 22-Aug-09 19:31:06

thank you. got it sorted.
howver, i think i need to spend some time redoing the naming .

GrimmaTheNome Sat 22-Aug-09 19:38:25

Oh, glad its sorted - very remiss of MN not to include chemical sketching software in its UI grin. Chemistry is a lot easier with pictures!

pearleyes Sun 23-Aug-09 00:19:14

Hi Stitchtime

I think we may be working on the same material.... saw your post and then went back to my studies and saw the question you asked about.

If we are would be great to keep in contact as we've only got just over three weeks....

P

stitchtime Sun 23-Aug-09 01:57:20

grima, shall i suggest it to tech?

pearl, is it the gamsat? if so, then yes, and please, talk to me.... i feel as if i'm working in a vacuum some of the time

pearleyes Sun 23-Aug-09 09:22:58

Hi Stitchtime

It is the dreaded Gamsat - I feel like that too.

Not sure if MN would be ready for a full scale GAMSAT conversation though and would be good to swap ideas/study tips...Are we allowed/is there a way to get in email contact?

xx

foreverchanges Sun 23-Aug-09 09:41:38

hello i did ou level one chemistry last year (passed)
a level is prob much harder
but make sure you understand all the terminology first (maybe get a dictionary of chemical terms) then reading it and understanding it will be much easier

stitchtime Mon 24-Aug-09 14:26:28

thank you forever. trouble is the questions are designed to confuse you.
pearly, email me, taxiservice08 at hotmail dot com

Join the discussion

Join the discussion

Registering is free, easy, and means you can join in the discussion, get discounts, win prizes and lots more.

Register now