I'm going to do it, You can't talk me out of it. I'm going to apply to do the course of my dreams. Wish me luck....

[AvenaLife]

I have 6 weeks to improve my chemistry knowledge by 12%. Do you think I'll do it?

I'm going to apply to train as a doctor. I've had enough of being a student nurse and teaching the medical students. I know alot and I will be so good.

Wish me luck, I really want this. Thans in advance. I might not apply but I will read and be so very grateful.

Yes, you name them going down the chain, not alphabetically.

link to IUPAC nomenclature here

Scroll down to alkanes

I have one book that says to ignore the prefix and another that doesn't say this. I think I have too many books! It's confusing. Just as bad as having too many parenting books that all say different things.

thankyou for your help.

Avenalife I asked dp and he agreed it is confusing because there are a lot of very specific rules about how you name. But his first response was 'name left to right'

In alphabetical order if they're on the same C atom in the parent chain?

eg. 2-bromo-2-ethyl pentane

Thankyou . I know about the rest of the naming, the books can't decide on the multiple branches though.

The web site's fab Ramble. Thankyou.

Anyone know anything about the eye and what happens to the fluid if you go under water?

Name from the earliest substituted atom.

Wow, anyone clicking on your thread now must be nodding off, sorry.

Ramble. If you have a parent octane chain with 2 methyl on c3 and 1 ethyl on c5 would you get 3,3-dimethyl,5 ethyloctane?

lol! Sorry. I will think of a better thread for next time. My hampster pongs maybe?

Dr Avenalife??? Sounds good! Good Luck

Thanks.

Yes, that seems right to me.

Have googled eye thing, as I'm intrigued.

This is the best I could come up with

all about fishies

So the fluid is regulated through a canal in the eye. I got this one wrong last time then.

I'm off to bed. Six weeks to go! Thankyou for all your help. I'll look at the nomelature in the morning if I can get ds away from the laptop.

No no no!!

I'm wrong. It is 5-ethyl-3,3-dimethyloctane.

your actual compound here on page 100

Jeez, hope you come back to this thread in the am and I haven't put you on a bum steer

Bumping in the hope that AvenaLife sees her thread

I've seen it. Thanks. I'll go through the link when ds goes to bed because he likes to talk!

Why does it go 5-ethyl-3,3-dimethyloctane? d goes before e in the alphabet so they can't go in alphabetical order??? 5's also after 3 so do they not go in numerical order don the parent branch either (IYSWIM).

Go for it and best of luck.

Oh my husband is applying for this at Liverpool 2009, he has a 2.2 in Chemistry I just hope that will be enough.

The exam's a nightmare. It takes all day and is split into 3 sections. Chemistry's not my most favourite subject. I get it now but failed my A level at 18. (I'm alot older now) I should start in October 2009. Fingers (and toes, legs, arms, feet...) crossed.

Good luck to your husband KatieDD .

As the substituted gps on the third atom are the same, ie two methyl groups, the di bit can be ignored.

Therefore they are in alphabetical order, ethyl, methyl.

I can see how you're confused - I thought I understood and remembered all of this. I'm now confused too

Hi AvenaLife, I find what you are doing so inspiring and wanted to wish you the best of luck! I'm looking forward to all your updates on your progress :-)