OCR A Chemistry F324 Rings, Polymers and Analysis Thu 26 Jan 2012

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Reply 780

StuartCB

Original post by Stevo F

good, good just testing :P

Haha I thought you were actually in need and needed to know the answer!

Reply 781

rogersnm

Original post by Stevo F

dont think so and hope not cause i dont :L

Nah I think Glycine and Glycerol are the only two molecules we need to know (other than the obvious)

Reply 782

High VOLTAGE

Original post by Stevo F

dont think so and hope not cause i dont :L

just have quick look just in case

Reply 783

Mike-nificent

Original post by LifeIsGood

Do we have to know the monomers of Terylene, Kevlar and Nylon off by heart??

Original post by Stevo F

dont think so and hope not cause i dont :L

I got told that we do need to know them, so I learnt them. Doubt it would be asked though.

Reply 784

TitchTheAntiHero

ohmy, I feel so sick now :frown:

Reply 785

Stevo F

Original post by StuartCB

Haha I thought you were actually in need and needed to know the answer!

haha, you believed me when i said I was just testing? (I was though... or was I?)
:confused:

Reply 786

rogersnm

Original post by Mike-nificent

I got told that we do need to know them, so I learnt them. Doubt it would be asked though.

From the spec:

Reply 787

StuartCB

Original post by Stevo F

haha, you believed me when i said I was just testing? (I was though... or was I?)
:confused:

Haaha, I'm so confused!

Reply 788

High VOLTAGE

what happens if you put a normal amino acid into alkali solution, doe it just donate a proton from the oxygen and form H2N CH(r)COO- ?

Reply 789

Stevo F

Does everyone know the definition of an alpha amino acid?

Reply 790

LifeIsGood

Original post by rogersnm

From the spec:

God bless you! :biggrin:

I'm done with Chemistry, it's wrecked my brain. Good luck to all, hopefully we all get A grades on results day :smile:

Reply 791

arvin_infinity

Original post by Stevo F

u have to know that curly arrows represent the movement of a lone pair of electrons

e pair you mean :P

this exam is a bit..

Reply 792

LifeIsGood

Original post by Stevo F

Does everyone know the definition of an alpha amino acid?

The same carbon atom attached to a NH2 & COOH group (June 2010 paper) but you can get the mark using the structural formula :smile:

Reply 793

TitchTheAntiHero

Original post by Stevo F

Does everyone know the definition of an alpha amino acid?

is it not an amino acid with the carboxylic acid group and the amine group on the same carbon?

Reply 794

Stevo F

Original post by StuartCB

Haaha, I'm so confused!

haha that's the point :tongue:

Reply 795

High VOLTAGE

what happens if you put a normal amino acid into alkali solution does the OH just become O- ?

Reply 796

Stevo F

Original post by arvin_infinity

e pair you mean :P

this exam is a bit..

e pair? too lazy to write electron now are we :L :lazy:

Reply 797

Stevo F

Original post by High VOLTAGE

what happens if you put a normal amino acid into alkali solution does the OH just become O- ?

yep

Reply 798

arvin_infinity

How can you convert halogenoalkene to amine

Reply 799

Stevo F

Original post by arvin_infinity

How can you convert halogenoalkene to amine

add ammonia in excess alcoholic solution

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OCR A Chemistry F324 Rings, Polymers and Analysis Thu 26 Jan 2012

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