Chemistry Predictions/Thoughts (1 Viewer)

[Francis006]

will 87 be b6 cutoff?

 

[appleali]

no chance

mr janus,
ive heard usually in hsc marking that the first solution is marked and anything past it is disregarded.
i am open to other opinions.
regards

 

[lyingsalsa]

will 87 be b6 cutoff?

probably about that. maybe a little higher because i think that was a relatively easy test

 

[appleali]

what was the shapes around the carbon atoms
was it trigonal planar and tetrahedral.

yep it was

 

[herbimycin]

in the second last question how many marks would I get if I calculated the mass of the halogen and found it to be bromine (but later on wrote the wrong compound writing F - idk how I ended up doing that) and I got the structures of A and B (except the Flourine part) but not E with the correct justifications for A and B?

probably lose 1 mark for swapping Br with F ( they should be able to see what you meant to do but cant give you all the marks obviously). maybe 3 or 4 out of 7 in total if you didnt get anything to do with compound E? idk really tho

 

[lyingsalsa]

yep it was

u done?

 

[Ishi081]

probably lose 1 mark for swapping Br with F ( they should be able to see what you meant to do but cant give you all the marks obviously). maybe 3 or 4 out of 7 in total if you didnt get anything to do with compound E? idk really tho

okay so at least 3?

 

[herbimycin]

okay so at least 3?

Yeah probably 3. would be 4 for getting the first two correct but -1 for swapping the halide. Did you write anything about E or what it can/cant be? bc that will sometimes get you an extra mark

 

[appleali]

u done?

nah still physics left to go, gotta hustle it

 

[lyingsalsa]

nah still physics left to go, gotta hustle it

yeah i got geo man. i have no motivation especially after chem

 

[appleali]

yeah i got geo man. i have no motivation especially after chem

ahh thats the last exam aye, good luck
fr the post chem motivation is at an all time low

 

[askit]

ahh thats the last exam aye, good luck
fr the post chem motivation is at an all time low

real I have phys aswell and at this point i dont even care abt my hsc I just wanna be free - everyone else is alr out celebrating smh

 

[askit]

Q35 was "Identify which structures 1, 2 and 3 in the table are acids X, Y and Z. Justify your answer with reference to the information provided." Surely we dont have to refer to it all, they gave so much info that you didn't really need

Well hopefully they don't mark too harshly for that - sucks since I got everything right just forgot abt doing that stuff

 

[leclerc16]

what was the shapes around the carbon atoms
was it trigonal planar and tetrahedral.

i said trigonal planar and pyramidal cos i forgot name for tetrahedral would i lose a mark?

 

[askit]

i said trigonal planar and pyramidal cos i forgot name for tetrahedral would i lose a mark?

Yeah had to be tetrahedral

 

[Ishi081]

Yeah probably 3. would be 4 for getting the first two correct but -1 for swapping the halide. Did you write anything about E or what it can/cant be? bc that will sometimes get you an extra mark

I only said that it goes through reflux and is the products of an alcohol and carboxylic acid which is esterification so E is an ester and then I ran out of time.

 

[ManifestationIsKey]

I only said that it goes through reflux and is the products of an alcohol and carboxylic acid which is esterification so E is an ester and then I ran out of time.

I think that would be 1 more mark, and if you explain what the numbers in the h nmr just meant than that would have been another mark. So probs 4/7

 

[leclerc16]

what was the iodic acid and sulfamic acid question, were we supposed to know the formulas for it?

 

[ManifestationIsKey]

what was the iodic acid and sulfamic acid question, were we supposed to know the formulas for it?

No you just had to calculate their pH by plugging in the numbers. But since it wan't equal to that 1.151 or whatever it was, it can't be a strong acid and doesn't fully ionise. Btw which one was stronger?

 

[femboys4life]

easy test should be abt 50 raw 100s in the state, so happy