VCE Chemistry 3/4 Examination 2015 - Discussion Thread

[jyce]

So I think I got about 109/120. I feel awful. There's probably no chance of a 45+ now :/ *cries*

I'd say you wouldn't be too far off a 45.

[thushan]

A 114.5/120 got a 50 in the 2013 exam which was considered easy!

[lisax3]

For the PH Question I got 4.5 but I rounded it up to 5, would I lose marks? :/

[jyce]

For the PH Question I got 4.5 but I rounded it up to 5, would I lose marks? :/

Did you at least write pH = 4.5 = 5? Or did you just write pH = 5?
- If you did the former, then they might not penalise you.
- But they'd definitely take ONE mark off if you just wrote that pH = 5.

[Tom41]

Isn't it to 1 sig fig so ph = 5???
I wrote 4.5 then a line under wrote 5 (1 sig fig)

[KingDrogba]

Isn't it to 1 sig fig so ph = 5???
I wrote 4.5 then a line under wrote 5 (1 sig fig)

I thought the exact same thing! I wrote pH=4.5
Then the next line under pH=5

[warya]

I thought the exact same thing! I wrote pH=4.5
Then the next line under pH=5

Whoa I did this exactly too hahah great minds think alike

[dazzsser]

Significant figures for pH doesn't count until after the decimal place so 4.5 is technically 1 SF

[Splash-Tackle-Flail]

1 Sig fig is actually 4.5 as the 4 just indicated the power of ten it is in (if that makes sense), but they usually only check one question for sig figs, so you should be ok (unless they're going to be especially strict this year- which I doubt cause then people will complain).