VCE Chemistry Exam Discussion and Solutions (in progress)

[Pandable]

I think question 9 was honestly to be expected. 10, ive never seen a question like that before on a chemistry exam. I. Frickin. Loved it. Which I realize might be a strange opinion, but come on, that was an interesting question, more fun than the constant need for the recitation of theory or calculations that were bombarding me prior to that question. I did, however, run out of time so i kind of rushed that question...

Also, for the independent variable, question 9, i chose the actual purity of the acid (though I think i said concentration, I actually meant purity). I realise the student isn't selecting values for it, but the way I saw it (and honestly this is very likely wrong), the value that is dependant on something else was the volume of the titre itself, and the variable that affects that would infact be the concentration. It also helps that the student was trying to figure out the purity of the commerical acid in the first place

Agreed
An i think the Independent Variable was the amount of times the experiment was conducted before the concordant values were found sadly i didnt actually write that in the exam

[nazerlazer]

Hi what study score would an exam score of 117/120 with rank 1?

[Pandable]

Hi what study score would an exam score of 117/120 with rank 1?

48+

[dk1234]

Hi What study score 95/120 and 80 average in sacs - strong cohort

[tigerlily28]

What was the answer for the last multiple choice question? Also the PEM cell was weird........what was even the overall reaction? Has anyone put up any answers yet?

[lovebiology]

Does anyone have a copy of the exam and solutions to the exam??

[JaeSunRyoo]

What was the answer for the last multiple choice question? Also the PEM cell was weird........what was even the overall reaction? Has anyone put up any answers yet?

PEM cell was just a 02+2h2 ---> 2h20 reaction.

[exit]

I lost most of the marks for the experimental design and mars stuff.

It's not feasible to rely on low efficiency biofuels on mars due to the high expected population after vce students get their results.

[GirRaffe]

what was the independent variable supposed to be for the titration experiment...? That was so confusing

I reckon it was the volume of NaOH. That's what I put anyways, pretty sure I'm wrong.

[JaeSunRyoo]

I lost most of the marks for the experimental design and mars stuff.

It's not feasible to rely on low efficiency biofuels on mars due to the high expected population after vce students get their results.

Witty.

[AbanoubKT]

Would trial number be the independent variable?

[gemmaruffin]

Would trial number be the independent variable?

I said the commercial acid....

[Nickthegreat699]

Shouldn’t the independent variable be the amount of powder form of the tartaric acid used ?

[gemmaruffin]

Shouldn’t the independent variable be the amount of powder form of the tartaric acid used ?

genius.

[Sine]

new study design how was it?

which past exam was it's difficulty comparable to?