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VCE Stuff => VCE Science => VCE Mathematics/Science/Technology => VCE Subjects + Help => VCE Chemistry => Topic started by: Chromeo33 on December 04, 2010, 02:21:16 pm

Title: Just a quick question (2,2-dimethylbutane)
Post by: Chromeo33 on December 04, 2010, 02:21:16 pm

I'm pretty sure I know the structural formula for the carbon compound, but I wasn't too sure as to what the semi-structural formula was.

Is it CH3C(CH3CH3)CH2CH3 ?

Title: Re: Just a quick question (2,2-dimethylbutane)
Post by: 98.40_for_sure on December 04, 2010, 02:23:25 pm

Yes, that's correct.

Title: Re: Just a quick question (2,2-dimethylbutane)
Post by: stonecold on December 04, 2010, 02:24:56 pm

I think it is CH3C(CH3)(CH3)CH2CH3

Isn't that 2-ethylbutane 99.95?

Title: Re: Just a quick question (2,2-dimethylbutane)
Post by: taiga on December 04, 2010, 02:25:47 pm

Might go with the (CH3)2 though

I think the other could be misconstrued a little, because you can draw that out such that it is not 2,2 dimethylbutane

Title: Re: Just a quick question (2,2-dimethylbutane)
Post by: 98.40_for_sure on December 04, 2010, 02:27:56 pm

Quote from: stonecold on December 04, 2010, 02:24:56 pm

I think it is CH3C(CH3)(CH3)CH2CH3

Isn't that 2-ethylbutane 99.95?

Isn't 2-ethylbutane CH3CH2CHCH3CH2CH3?

EDIT:.... can you even have 2-ethylbutane?
by chucking on an ethyl sidechain, the length of the carbon chain becomes a 'pent'

Title: Re: Just a quick question (2,2-dimethylbutane)
Post by: Chromeo33 on December 04, 2010, 02:47:34 pm

Lol sorry you guys lost me there..

Taiga, did ya say that this was right: CH3C(CH3)2CH2CH3 ?

This seems to make more aesthetic sense as well..

Title: Re: Just a quick question (2,2-dimethylbutane)
Post by: taiga on December 04, 2010, 02:49:36 pm

Quote from: Chromeo33 on December 04, 2010, 02:47:34 pm

Lol sorry you guys lost me there..

Taiga, did ya say that this was right: CH3C(CH3)2CH2CH3 ?

This seems to make more aesthetic sense as well..

Yeah :)

Title: Re: Just a quick question (2,2-dimethylbutane)
Post by: 98.40_for_sure on December 04, 2010, 02:51:13 pm

TAIGERSTYLE how could you misconstrue CH3CH3? i can't seem to find any other way to draw it. So i conclude that both are equally correct?

Title: Re: Just a quick question (2,2-dimethylbutane)
Post by: taiga on December 04, 2010, 02:54:31 pm

Quote from: 99.95_for_sure on December 04, 2010, 02:51:13 pm

TAIGERSTYLE how could you misconstrue CH3CH3? i can't seem to find any other way to draw it. So i conclude that both are equally correct?

My bad, you'd have to make an error to misconstrue it.

But you could draw it as a carbon attached to another, attached to another.

So CH2CH2CH3

Rather than a CH3 being on either side.


I still stand by my answer being prettier

Title: Re: Just a quick question (2,2-dimethylbutane)
Post by: 98.40_for_sure on December 04, 2010, 02:56:22 pm

Pretty like... far east movement chick? she reminds me of nikita

Title: Re: Just a quick question (2,2-dimethylbutane)
Post by: chansthename on December 04, 2010, 04:21:57 pm

I'm with Taiga on this

Title: Re: Just a quick question (2,2-dimethylbutane)
Post by: dptjandra on December 05, 2010, 05:29:22 pm

Yeh, I would agree with Taiga, not just on the basis that it's "prettier", but the extension of that, which is that I believe it is probably the convention (and of course, the whole system is an artificial convention!)