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Competition - post a photo you've taken of nature >>

Cambridge Chemistry Challenge

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Reply 1240
Avatar for Zarah01
Zarah01
9
Original post by Oromis263
Sigh, wasted so much time on Rg, again.


Sigh, i've not even done the first question.

and i just realised your username was from the eragon books!
(edited 11 years ago)
Gold is killing me~
Gonna do something I never do, and ask you guys for a possible clue for Gold.....???
Original post by Oromis263
Sigh, wasted so much time on Rg, again.



Hey man could you please gimme a clue for Rg
I can't believe after being stuck on entry for 20 minutes I've got a best ever finish of 39th! :smile:

Snake's top hints:

Entry: Think about symmetry.

Copper: What is the molecule's image made up of? Does that give you a clue?

Silver: Look very carefully at the peaks and more importantly the scales on the axes.

Gold: This is the hardest of the lot. Research IR spectra and how they work, I guess.

Rg: You need to be able to calculate the volume of the arena. The rest is a bit of clever maths, but the website accepts a wide range of answers, I think. Keep calm!




Posted from TSR Mobile
These are just clues. I won't be posting any answers directly into the thread.

Entry



Copper



Silver



Gold



Rg

(edited 11 years ago)
Original post by Zarah01
Sigh, i've not even done the first question.

and i just realised your username was from the eragon books!


Awh yeah. One of my favourite series of books. :smile:
Reply 1247
Avatar for Lutski
Lutski
Someone got the answer for silver? I know exactly what it's asking, now the question is just becoming irritating.
I give up now. Researching IR spectra at 1AM is only fun for so long. Night!
Gold, stop killing me slowly.
Reply 1250
Avatar for Zarah01
Zarah01
9
Original post by Oromis263
Awh yeah. One of my favourite series of books. :smile:


didn't like the last book as much, didn't live up to my expectations :frown:
thanks for the tips and to snakefingers as well they're really useful, i proceed onto gold
I have to say, this challenge wasn't bad. But Rg is a little misleading at first. Did they have to use a minus sign? O2 doesn't even have single bonds! Honestly cambridge could've been less sneaky and have used an equals sign instead.
Gold help please I have been on it for 30 min


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Original post by little_miss_smiley
Gold help please I have been on it for 30 min


Posted from TSR Mobile


I'm stucked in silver. I know what the graph is but it keeps telling me:
Almost, take a closer look at where the peaks are...
Help!
I'm stuck on Gold, I think I know what I need, I just don't know what the molecule is.
Can i send someone my answer for gold to see if I am close


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Reply 1256
Avatar for lpdsr
lpdsr
help in gold! i just can't find relation between IR spectra!
can i find the value online or do i have to calculate it?
(edited 11 years ago)
Reply 1257
Avatar for nitrous
nitrous
1
For all those stuck on gold, look at the basics of IR spec theory.
could someone please help with entry questionit is completely baffling me i know that it is related to symmetry but how help please!!!!!!!
Original post by sharvaj97
could someone please help with entry questionit is completely baffling me i know that it is related to symmetry but how help please!!!!!!!


I don't know how to say it without telling the answer, it is a property related to symmetry (or asimmetry) it is related to stereochemistry as well....

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