VCE Chemistry 2010 Unit 3 Exam Suggested Solutions

[crayolé]

Oh my god, I have the worst teacher i swear. Went over the test the other day and he fucking says the ethyl methanoate was a ketone

[Akirus]

Oh my god, I have the worst teacher i swear. Went over the test the other day and he fucking says the ethyl methanoate was a ketone

My friends were telling me it was an aldehyde right after the exam.

[stonecold]

Oh my god, I have the worst teacher i swear. Went over the test the other day and he fucking says the ethyl methanoate was a ketone

How some people are allowed to teach has got me stuffed!

[crayolé]

Oh my god, I have the worst teacher i swear. Went over the test the other day and he fucking says the ethyl methanoate was a ketone

How some people are allowed to teach has got me stuffed!

Mhm, whole year has pretty much been self taught :z

[Blakhitman]

That's the molecular formula.

[lisafaustina]

did you have to write carbonyl along with C=O? Cos i just wrote C=O and didnt write carbonyl
and same goes with acidified dichromate. i didnt name it, i only just wrote Cr207/H+

[vexx]

did you have to write carbonyl along with C=O? Cos i just wrote C=O and didnt write carbonyl
and same goes with acidified dichromate. i didnt name it, i only just wrote Cr207/H+

Cr207^2-/H+ is correct, and for the C=O they only said name the atoms and bond between them, so perhaps saying C double bond O was correct? XD since they didn't specify what type of bond..hehe

[kenhung123]

Yea thats what I wrote coz it asked something like atoms and type of bond or something?

[kenhung123]

Do you think that was like the lead up to the double bond question trick? Trying to remind us that C=O is in fact a double bond...?

[chansthename]

Do you think that was like the lead up to the double bond question trick? Trying to remind us that C=O is in fact a double bond...?

lol, that would help legitimise taking marks off fror not having 7.

[stonecold]

My chem teacher today told me that:

-6 double bonds will be accepted. If you said 7, you had to explain why.
-3/1 is being accepted for the value of the stoichiometric equation question.
-Bunsen burner questions has a range of answers, and when I said 'temperature control' to her, she didn't say it was wrong so I am pretty sure this is being accepted.

Hopefully everyone will pick up some extra marks now.

A+ is also looking high, it may be in the 90's, but don't speculate too much.  

Edit: Just to make it clear, she is an exam marker.

[m@tty]

My chem teacher today told me that:

-6 double bonds will be accepted. If you said 7, you had to explain why.
-3/1 is being accepted for the value of the stoichiometric equation question.
-Bunsen burner questions has a range of answers, and when I said 'temperature control' to her, she didn't say it was wrong so I am pretty sure this is being accepted.

Hopefully everyone will pick up some extra marks now.

A+ is also looking high, it may be in the 90's, but don't speculate too much. 

That is soo good =)

And about the double-bond question: that is exactly what I thought initially! haha

[vexx]

zzzz i hope its not in the 90s :/

i think we are all hoping that too ><

[andy456]

My chem teacher today told me that:

-6 double bonds will be accepted. If you said 7, you had to explain why.
-3/1 is being accepted for the value of the stoichiometric equation question.
-Bunsen burner questions has a range of answers, and when I said 'temperature control' to her, she didn't say it was wrong so I am pretty sure this is being accepted.

Hopefully everyone will pick up some extra marks now.

A+ is also looking high, it may be in the 90's, but don't speculate too much. 

Edit: Just to make it clear, she is an exam marker.

Did she give any indication as to whether the cut-offs are higher or lower than 2008's??

[Studyinghard]

wooot for the bunsen burner question. Extra 1 mark in the bag