ATAR Notes: Forum

VCE Stuff => VCE Science => VCE Mathematics/Science/Technology => VCE Subjects + Help => VCE Chemistry => Topic started by: Wizard on January 09, 2009, 10:41:21 pm

Title: Chem Questions
Post by: Wizard on January 09, 2009, 10:41:21 pm
I was flicking through checkpoints, and in the organic section I found questions on the nitrogen cycle. In fact, they were past VCAA questions. Do we need to remember this from Unit 2? I hope not :)
Title: Re: Chem Questions
Post by: shinny on January 09, 2009, 10:42:48 pm
Pretty sure you don't. I think that's only in the previous study design, which has been pretty much completely changed.
Title: Re: Chem Questions
Post by: polky on January 09, 2009, 10:44:40 pm
Nope no need to know that, as far as I know.

The organic Area of Study mostly focuses on nomenclature, drawing of the compounds and reaction pathways.  Also the bio stuff!
Title: Re: Chem Questions
Post by: /0 on January 10, 2009, 12:23:06 am
Don't you find nomenclature really annoying? (the very word is a annoying too)
We spend so much time learning about how to name chemicals, and it seems so pointless. I feel like we're not actually learning anything new about how our universe works, just learning whatever some bureacractic old fart dreamt up however many decades ago.
Title: Re: Chem Questions
Post by: mark_alec on January 10, 2009, 01:03:39 am
Quote from: /0 on January 10, 2009, 12:23:06 am
Don't you find nomenclature really annoying? (the very word is a annoying too)
We spend so much time learning about how to name chemicals, and it seems so pointless. I feel like we're not actually learning anything new about how our universe works, just learning whatever some bureacractic old fart dreamt up however many decades ago.
It is very important to be able to understand from a name the structure of a chemical, and likewise, to convert a structure to a name so you can communicate its structure non-pictorially.
Title: Re: Chem Questions
Post by: Wizard on January 10, 2009, 01:29:58 pm
In esterification reactions (eg. ethanol reacting with ethanoic acid to produce ethyl ethanoate and water), what is the state of the ester? Is it aqueous or liquid? 
Title: Re: Chem Questions
Post by: Wizard on January 10, 2009, 01:55:44 pm
Also, how would you name this ester?

HCOOCH(CH3)2

Title: Re: Chem Questions
Post by: mark_alec on January 10, 2009, 06:39:07 pm
2-propyl methanoate (2-propyl is also isopropyl, and methanoate is also formate, but I don't think these are needed for the VCE course)