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OCR Salters: Chemistry of Materials Revision thread

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Reply 20
Avatar for Akkuz
Akkuz
17
dream123
how do you think it went?
what did you write? yes...go on. impress us all! plus, if they were to ask you to write the TLC experiment, and the normal paper chromo...what would be the only difference in your explaination?


You want an explanation of TLC? :s-smilie:
Reply 21
Avatar for Akkuz
Akkuz
17
Loz17
I hate SS and DP as well


I like DP :rolleyes:
Reply 22
Avatar for LadySmythe
LadySmythe
OP
19
Akkuz
I like DP :rolleyes:


Lol

Anything to do with polymers I hate

I just don't get plastic!
Reply 23
Avatar for dream123
dream123
2
Akkuz
You want an explanation of TLC? :s-smilie:

NO NO, I WAS TEASING.
bUT WHAT IS THE main DIFFERENCE between TLC and PAPER CHROMO?
Reply 24
Avatar for dream123
dream123
2
Loz17
Lol

Anything to do with polymers I hate

I just don't get plastic!

Its either flexible or not.:yep:
Reply 25
Avatar for Akkuz
Akkuz
17
dream123
NO NO, I WAS TEASING.
bUT WHAT IS THE main DIFFERENCE between TLC and PAPER CHROMO?


Oh, haha.

Aren't they the same thing? :s-smilie:
Reply 26
Avatar for Akkuz
Akkuz
17
Loz17
Lol

Anything to do with polymers I hate

I just don't get plastic!


DP questions are quite easy. They're all about the chains in polymers. :biggrin:
Reply 27
Avatar for dream123
dream123
2
Akkuz
Oh, haha.

Aren't they the same thing? :s-smilie:

well, thats what I was thinking. why two different names?
Reply 28
Avatar for LadySmythe
LadySmythe
OP
19
dream123
Its either flexible or not.:yep:


But one is thermosplastic, one is thermoset, one is has a crystalline structure, one is made from additional polymerisation, another condensation polymerisation, one is kelvlar with benzene rings, strong, fire resistant and used for bullet proof jackets, another is an amide (bloody nylon and its stupid systematic names)

ARRRRGH!

And thats both PR and DP for anyone who wants it
Reply 29
Avatar for dream123
dream123
2
Akkuz
DP questions are quite easy. They're all about the chains in polymers. :biggrin:

i think with polymers, you are repaeting the same thing...flexible, amorphous , weak bonds etc. :yep:
Reply 30
Avatar for dream123
dream123
2
Loz17
But one is thermosplastic, one is thermoset, one is has a crystalline structure, one is made from additional polymerisation, another condensation polymerisation, one is kelvlar with benzene rings, strong, fire resistant and used for bullet proof jackets, another is an amide (bloody nylon and its stupid systematic names)

ARRRRGH!

And thats both PR and DP for anyone who wants it


dude, you know your stuff! stop panicking :huggles:
Reply 31
Avatar for Akkuz
Akkuz
17
dream123
i think with polymers, you are repaeting the same thing...flexible, amorphous , weak bonds etc. :yep:


Yeah ^^

Only part I hate is the whole instantaneous - induced dipole crap.
Reply 32
Avatar for Akkuz
Akkuz
17
dream123
dude, you know your stuff! stop panicking :hugggles:


Haha, yeah!
Reply 33
Avatar for LadySmythe
LadySmythe
OP
19
Akkuz
Oh, haha.

Aren't they the same thing? :s-smilie:


One is just using water to see what componants (for usually colours if a felt tip pen) are present. TLC, sealed system, silica plate, solvent, pencil base line with pure substance on the right, impure substance on the left. Then use a UV light to see how pure the inpure substance (oxymoron I know lol) is compared t the pure substance
Reply 34
Avatar for jc123
jc123
1
for salters chem past papers go to http://82.198.226.58/index.php?option=com_content&task=view&id=160
Reply 35
Avatar for LadySmythe
LadySmythe
OP
19
dream123
dude, you know your stuff! stop panicking :huggles:


lol :hugs: that was just off the top of my head, but most of that was AS stuff though :s-smilie:
Reply 36
Avatar for Akkuz
Akkuz
17
Hmmm, it seems I only have 4 pages of notes on DP. Eeek :eek:
Reply 37
Avatar for LadySmythe
LadySmythe
OP
19
Akkuz
Hmmm, it seems I only have 4 pages of notes on DP. Eeek :eek:

I have 3 :s-smilie: I think

Not even finished I don't think
anyone finding STEEL STORY the hardest module, ive had 97 and 95 % in designer polymers and whats in a medicine, but really really struggliing with steel story, got a mock tomorrow on enigineering protiens :s-smilie: .... oh and any 1 know what theyre doing for investigations?
Reply 39
Avatar for dream123
dream123
2
talking of the DP chapter, I hate the rate of recation questions. I have no idea whats going on there!!

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