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Cambridge Chemistry Challenge

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Original post by dream_merchant
Finally :biggrin: Thank God for wikipedia :biggrin:

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I have no idea what to do for the riddle. im completley stuck. can you help me?
Reply 121
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mufasa
please help me with the entry level, i know its capsaicin but i dont understand the degree c part of the question???
Thanks!
Original post by mufasa
please help me with the entry level, i know its capsaicin but i dont understand the degree c part of the question???
Thanks!


look up its melting point...
Reply 123
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mufasa
i'm so silly, i was trying to work out what the letters at the bottom said: 'r n p' then i realised it said mp. lol
Reply 124
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mufasa
guys whats the answer to silver????
Reply 125
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mufasa
Original post by charco
look up its melting point...


do you know the answer to silver???/
Original post by mufasa
do you know the answer to silver???/


yes
Reply 127
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mufasa
Original post by charco
yes

please help me! how do you do it?
Reply 128
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gwengwen
Original post by mufasa
please help me! how do you do it?


Was it the three elements question? Look up the pigments in those background diagrams!
Reply 129
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gwengwen
Original post by craig12
I'm stuck on gold =/ I think the metal atoms for red blood cells and leaves are iron and magnesium but what is the other one?!

Yeah, I've just realised that it is a turaco :smile:
it is something to do with the bright green pigmemt
Reply 130
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gwengwen
Original post by sonal95
So stuck on gold! can any explain please?
im guessing its 3 elements in red blood cells, leaves etc? something to do with porphyrins? or am I completely missing something :P
thanks! :smile:
it's the metal binded with the porphyrin in the chemical made up the bright green pigment for the bird, pigment for chlorophyll and pigment for red blood cell.:wink:
Reply 131
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chill543
got to Rg level. and im finding that one very hard, may even leave it.... im good enough for gold :biggrin:
Reply 132
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mufasa
Original post by gwengwen
Was it the three elements question? Look up the pigments in those background diagrams!


no the silver stage? ive tried and tried but i never seem to come up with the right answer. can someone please end this frustration!!!! please! thanks!! :biggrin:
how do you do the entry level one?!
i worked out the formula C17H28NO3 ? :s-smilie:
Reply 134
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mufasa
Original post by halii_94
how do you do the entry level one?!
i worked out the formula C17H28NO3 ? :s-smilie:


thye answer is 62
I still can't do the silver stage. :cry:
Reply 136
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mufasa
Original post by loopy786
I still can't do the silver stage. :cry:


same!!! i need help!!
Original post by mufasa
same!!! i need help!!


I've tried everything I can, but alas, no can do. :frown: I found the other stages so easy as well, then I got there and thought 'Hurrah' and then it turns out that nothing I type in works. :sigh:
Original post by halii_94
how do you do the entry level one?!
i worked out the formula C17H28NO3 ? :s-smilie:


Google chilli :wink:
Reply 139
Avatar for CM23925
CM23925
Original post by loopy786
I still can't do the silver stage. :cry:


For this stage you must read the concentration of Capsaicin in ppm from the graph (must first log10 the 500000 SHU and then doing 10^(y-value)) then convert ppm to moldm-3

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