Warning: Illegal string offset 'html' in /home/hsn/public_html/forum/cache/skin_cache/cacheid_1/skin_topic.php on line 909

How was it? - HSN forum - Page 4

# How was it?

614 replies to this topic

### #61Shaun

Fully Fledged Genius

• Moderators
• 1,571 posts
• Gender:Not Telling
• Gender:Not Telling

Posted 31 May 2005 - 02:10 PM

I don't want to discuss answers but I wrote down all my multiple choice marks and I got 28/40. In the written paper I got about 25.

So overall, I got about 25+28 = 53/100 = 53%. Give or take a few marks.

Considering that last year the pass for a C was 45/100, I don't think the pass rate will be much higher this year, so I'm fairly confident I have a C.

### #62gary

Child Prodigy

• Members
• 546 posts

Posted 31 May 2005 - 02:12 PM

have you got the correct answers for the multiple choice if you know you got 28.

### #63Jonny-Sensei

Good Effort

• Members
• 59 posts
• Location:(0,0)
• Interests:Anime, Music, Skateboards, Guitar/Bass, Ice Hockey, Drinking, Darts, Poker, Pool and of course SLEEPING!!!<br /><br />Currently about to take a gap year before reapplying for Medicine. Hoping to study at Aberdeen University :D
• Gender:Male

Posted 31 May 2005 - 02:13 PM

QUOTE(gary @ May 31 2005, 02:09 PM)
someone write out the way that they done it.

n(iodine)= c x v = X mol
1 mol Iodine ----> 1 mol Vit C, so n(vitamin c) = X mol
GFM of Vit C = Y (using the Data Book)
mass Vit C =ng = XY

Hope that made sense. Sorry I couldn't remember exact figures.
Roll on ze gap year !!

### #64dfx

Fully Fledged Genius

• Members
• 1,955 posts
• Gender:Male

Posted 31 May 2005 - 02:19 PM

yep, you end up with like 10^-4, and then multiply by 10 so its 10^-3.

The oxidation of cyclohexanol I said gives you hexanal

### #65gary

Child Prodigy

• Members
• 546 posts

Posted 31 May 2005 - 02:19 PM

I have done the first three steps right cant remeber for the life of me what I got for the answer.

### #66gary

Child Prodigy

• Members
• 546 posts

Posted 31 May 2005 - 02:21 PM

Vitamin C is 176g isn't it?

### #67YIC

Fully Fledged Genius

• Members
• 1,976 posts
• Location:UK
• Interests:My interests
• Gender:Male

Posted 31 May 2005 - 02:25 PM

QUOTE(dfx @ May 31 2005, 03:19 PM)
yep, you end up with like 10^-4, and then multiply by 10 so its 10^-3.

The oxidation of cyclohexanol I said gives you hexanal

were you not meant to draw the full structural formula for that (is this the very last question you are talking aboot)

### #68Jonny-Sensei

Good Effort

• Members
• 59 posts
• Location:(0,0)
• Interests:Anime, Music, Skateboards, Guitar/Bass, Ice Hockey, Drinking, Darts, Poker, Pool and of course SLEEPING!!!<br /><br />Currently about to take a gap year before reapplying for Medicine. Hoping to study at Aberdeen University :D
• Gender:Male

Posted 31 May 2005 - 02:29 PM

Oh yeah, it was cyclohexanal wasn't it.
and I think it did have to be drawn, at least thats what I done.

Will I get an automatic fail for taking the rough working sheet away?
Roll on ze gap year !!

### #69dfx

Fully Fledged Genius

• Members
• 1,955 posts
• Gender:Male

Posted 31 May 2005 - 02:30 PM

I really dont think so.. I mean there wasn't really huge amounts of working to be done.

### #70gary

Child Prodigy

• Members
• 546 posts

Posted 31 May 2005 - 02:31 PM

I done that in physics and i done it today they let me take it away.

### #71gary

Child Prodigy

• Members
• 546 posts

Posted 31 May 2005 - 02:32 PM

I got cyclohexanal aswell.

### #72supernova

Showing Improvement

• Members
• 31 posts
• Gender:Female

Posted 31 May 2005 - 02:34 PM

The rough working sheet is just thrown away anyway, so you'll be allowed to take it out of the exam!

Our invigilator told us...

### #73YIC

Fully Fledged Genius

• Members
• 1,976 posts
• Location:UK
• Interests:My interests
• Gender:Male

Posted 31 May 2005 - 02:38 PM

yeah, it is not like you have written your name on the sheet so they don't know if you have taken it. Even if you did, it probably wouldn't matter...

### #74dfx

Fully Fledged Genius

• Members
• 1,955 posts
• Gender:Male

Posted 31 May 2005 - 02:40 PM

How would you get cyclohexanal? I found it impossible. Since the C with the carbonyl group will have 1 bond to the H and 2 bonds to the O, which leaves 1 bond vacant. But if its in a chain, it needs 2 bonds to be connected to both ends of the chain... So I drew hexanal.

### #75Tiger

Good Effort

• Members
• 61 posts
• Gender:Female

Posted 31 May 2005 - 02:51 PM

QUOTE(gary @ May 31 2005, 03:32 PM)
I got cyclohexanal aswell.

I got it too but i just drew it i didnt write the name down. Does that mean i dont get any marks . Because as far as i remember it only said to draw the structure.

### #76FcukWIT

Good Effort

• Members
• 90 posts
• Gender:Male

Posted 31 May 2005 - 02:52 PM

You didnt need to hand in the Rough working sheets. Our Invigilator told us to
bin them b4 we left the assembly hall.

### #77Tiger

Good Effort

• Members
• 61 posts
• Gender:Female

Posted 31 May 2005 - 02:55 PM

QUOTE(FcukWIT @ May 31 2005, 03:52 PM)
You didnt need to hand in the Rough working sheets. Our Invigilator told us to
bin them b4 we left the assembly hall.

We had to hand in ourz.

### #78gary

Child Prodigy

• Members
• 546 posts

Posted 31 May 2005 - 02:56 PM

QUOTE(Tiger @ May 31 2005, 02:51 PM)
QUOTE(gary @ May 31 2005, 03:32 PM)
I got cyclohexanal aswell.

I got it too but i just drew it i didnt write the name down. Does that mean i dont get any marks . Because as far as i remember it only said to draw the structure.

Yeah it was the structure i drew

### #79dfx

Fully Fledged Genius

• Members
• 1,955 posts
• Gender:Male

Posted 31 May 2005 - 02:57 PM

By the way just googled. Cyclohexanol is a secondary alcohol, so you end up with CyclohexanONE

### #80Shaun

Fully Fledged Genius

• Moderators
• 1,571 posts
• Gender:Not Telling
• Gender:Not Telling

Posted 31 May 2005 - 03:03 PM

QUOTE(gary @ May 31 2005, 03:12 PM)
have you got the correct answers for the multiple choice if you know you got 28.