ATARNotes Suggested Solutions for VCAA 2012 Chemistry Unit 3 Exam

[aish]

uggh..is it possible that the vcaa examiners will accept other structural formulas such as ones showing all bonds?

[JieSun92]

thanks for the solutions thushan!

[thushan]

uggh..is it possible that the vcaa examiners will accept other structural formulas such as ones showing all bonds?

yeah defs - i just ceebed getting my other computer out to draw the structural formula haha

[charmanderp]

ps. If i did something stupid with the balancing of the combustion in q1biii, but got all the states right, would I get 1 or 0?

So I'm not the only one?

[thushan]

ps. If i did something stupid with the balancing of the combustion in q1biii, but got all the states right, would I get 1 or 0?

So I'm not the only one?

0/2 I think

[pi]

Sorry for delay, I was studying.

FOR WHAT!?!?!

[AllAboutTheLGs]

Chemderp did you stuff up the equation? Everyone is dropping the silliest marks!

[Nobby]

ps. If i did something stupid with the balancing of the combustion in q1biii, but got all the states right, would I get 1 or 0?

So I'm not the only one?

0/2 I think

Shit...why 0? Not even 1?

[woliaj]

For the testing wether or not the propyl propanoate is pure, could you use HPLC??

[sin0001]

Hey for the combustion reaction: My states were right and all of the coefficients of my equation were right except, i put 52 infront of the O2 (should've been 26). Still not worth a mark?

[Tonychet2]

Hey for the combustion reaction: My states were right and all of the coefficients of my equation were right except, i put 52 infront of the O2 (should've been 26). Still not worth a mark?

that should be worth 1 mark, i think thushan thought u made a crazy crazy mistake like combusting ethanol or something lol

[Soul_Khan]

Can anyone explain to me why propanol would be wrong?

[Tonychet2]

Can anyone explain to me why propanol would be wrong?

the systematic name of propanol is wrong, its either propan-1-ol or propan-2-ol and propan-2-ol does not form propanoate

[thushan]

For the testing wether or not the propyl propanoate is pure, could you use HPLC??

HPLC should be fine I think.

About the states vs balanced...if balancing is wrong, then 0/2 sorry... it's from a past assessors report:

"Two marks were awarded for a correct balanced equation with all states correct, one mark was awarded for a correct
balanced equation with one or more states missing or incorrect, and no marks were awarded for an incorrect equation."

It's a sucky marking scheme...

[Somye]

ps. If i did something stupid with the balancing of the combustion in q1biii, but got all the states right, would I get 1 or 0?

So I'm not the only one?

0/2 I think

Hmm, fair enough, a little disappointing, but just pick up the slack for unit 4!