Cambridge Chemistry Challenge

Chemistry discussion, revision, exam and homework help.

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  1. jithinr77's Avatar
    • Junior Member
    • Posts: 59
    Re: Cambridge Chemistry Challenge
    (Original post by dream_merchant)
    Finally Thank God for wikipedia
    Spoiler:
    Show
    ended up going through a list of chemists till i found a name i recognised. not really showing off my chemistry talen there but ah well
    I have no idea what to do for the riddle. im completley stuck. can you help me?
  2. mufasa's Avatar
    • Junior Member
    • Posts: 28
    Re: Cambridge Chemistry Challenge
    please help me with the entry level, i know its capsaicin but i dont understand the degree c part of the question???
    Thanks!
  3. charco's Avatar
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    Re: Cambridge Chemistry Challenge
    (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...
  4. mufasa's Avatar
    • Junior Member
    • Posts: 28
    Re: Cambridge Chemistry Challenge
    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
  5. mufasa's Avatar
    • Junior Member
    • Posts: 28
    Re: Cambridge Chemistry Challenge
    guys whats the answer to silver????
  6. mufasa's Avatar
    • Junior Member
    • Posts: 28
    Re: Cambridge Chemistry Challenge
    (Original post by charco)
    look up its melting point...
    do you know the answer to silver???/
  7. charco's Avatar
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    Re: Cambridge Chemistry Challenge
    (Original post by mufasa)
    do you know the answer to silver???/
    yes
  8. mufasa's Avatar
    • Junior Member
    • Posts: 28
    Re: Cambridge Chemistry Challenge
    (Original post by charco)
    yes
    please help me! how do you do it?
  9. gwengwen's Avatar
    • Junior Member
    • Posts: 37
    Re: Cambridge Chemistry Challenge
    (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!
  10. gwengwen's Avatar
    • Junior Member
    • Posts: 37
    Re: Cambridge Chemistry Challenge
    (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
    it is something to do with the bright green pigmemt
  11. gwengwen's Avatar
    • Junior Member
    • Posts: 37
    Re: Cambridge Chemistry Challenge
    (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!
    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.
  12. chill543's Avatar
    • Benevolent Member
    • Posts: 819
    Re: Cambridge Chemistry Challenge
    got to Rg level. and im finding that one very hard, may even leave it.... im good enough for gold
  13. mufasa's Avatar
    • Junior Member
    • Posts: 28
    Re: Cambridge Chemistry Challenge
    (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!!
  14. choccandy21's Avatar
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    Re: Cambridge Chemistry Challenge
    how do you do the entry level one?!
    i worked out the formula C17H28NO3 ?
  15. mufasa's Avatar
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    • Posts: 28
    Re: Cambridge Chemistry Challenge
    (Original post by halii_94)
    how do you do the entry level one?!
    i worked out the formula C17H28NO3 ?
    thye answer is 62
  16. loopy786's Avatar
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    Re: Cambridge Chemistry Challenge
    I still can't do the silver stage. :cry:
  17. mufasa's Avatar
    • Junior Member
    • Posts: 28
    Re: Cambridge Chemistry Challenge
    (Original post by loopy786)
    I still can't do the silver stage. :cry:
    same!!! i need help!!
  18. loopy786's Avatar
    • Exalted and Worshipped Member
    • Posts: 1,027
    Re: Cambridge Chemistry Challenge
    (Original post by mufasa)
    same!!! i need help!!
    I've tried everything I can, but alas, no can do. 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:
  19. Little Wing's Avatar
    • Benevolent Member
    • Posts: 626
    Re: Cambridge Chemistry Challenge
    (Original post by halii_94)
    how do you do the entry level one?!
    i worked out the formula C17H28NO3 ?
    Google chilli
  20. CM23925's Avatar
    • Junior Member
    • Posts: 63
    Re: Cambridge Chemistry Challenge
    (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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