Chemistry Unit 5 IAL (WCH05)

Original post by deathbychem

what did you guys get for mcq no. 7..the one about the color intensity graph?

I chose this one. you?

^Lol.

Original post by airheadbuster

I skipped that.

Another question, do we have to double the lowest count to find % uncertainty when using pipette and volumetric flask?

you shouldn't double any of the values.. it said that it was the maximum uncertainty for that values so they were already doubled.. (eg burete has an uncertainty of +-0.05cm3 but they gave us +-0.10cm3)

Reply 23

Relaxedexams

For the E cell values, first one was positive and second was negative?

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Reply 24

Original post by Relaxedexams

For the E cell values, first one was positive and second was negative?

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Yes i think so.

What did you get for the colour at the end point of the titration?

Reply 25

airheadbuster

I lost like 23 marks then. Where do you think the grade boundary will be for an A? I really hope 67. :frown:

Reply 26

Relaxedexams

Original post by Daniel Atieh

Yes i think so.

What did you get for the colour at the end point of the titration?

Colourless to permenant pale pink?

Was a difficult paper, even section C I found a bit tricky :/

What do you guys think about boundaries? Jan 14 was 71 or 73 for A* and it was an easier paper.

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Reply 27

Original post by Relaxedexams

Colourless to permenant pale pink?

Was a difficult paper, even section C I found a bit tricky :/

What do you guys think about boundaries? Jan 14 was 71 or 73 for A* and it was an easier paper.

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Yes i think so, tho i just wrote colourless haha. I even marked some mcq questions to them later and then i completely forgot about them.
The paper was freaking hard. I think 68 should be a*. What questions do you have? I forgot what was there.
Did you choose solvent extraction for the last mcq?

Reply 28

airheadbuster

Original post by Relaxedexams

Colourless to permenant pale pink?

Was a difficult paper, even section C I found a bit tricky :/

What do you guys think about boundaries? Jan 14 was 71 or 73 for A* and it was an easier paper.

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75/76 for A*. Either that or I can kiss my uni hope good bye. :frown:

(edited 9 years ago)

Reply 29

Original post by airheadbuster

75/76 for A*. Either that or I can kiss my uni hope good bye. :frown:

Must be lower than that. I think 68-71 is a must, otherwise i m done!

Reply 30

rockstar101

4

That paper was the worst chem paper i have ever done!
You could not have studied for half of it.....
I wrote colour at end l
Point was pink.....
Got 70.08% for the limestone ques....
I honestly dont know........grade boundaries better be super low!k
Everyone i know basically wanted to commit suicide after that paper.....i usually get 85/90+ in past papers but this one :frown:

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Reply 31

Relaxedexams

Original post by Daniel Atieh

Yes i think so, tho i just wrote colourless haha. I even marked some mcq questions to them later and then i completely forgot about them.
The paper was freaking hard. I think 68 should be a*. What questions do you have? I forgot what was there.
Did you choose solvent extraction for the last mcq?

Yea solvent extraction.

Section C, why was free rotation restricted? And what is stereospecific? And also there were 2 chiral centres? And how did you draw the optical isomer? And also the chlorocyclohexane, how did u show the 2 isomers? And for cisplatin and transplatin should you show charge on Cl ion and Pt ion? I forgot :/

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Reply 32