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  1. S

    biology: infectious diseases and vaccine notes

    Biofactsheets on infectious diseases and vaccines :crazy:
  2. S

    Chem p33 confirmations

    i didn't finish the calculations for the first questions, i skipped two of them which included finding moles of the weighed fe2+ and the one after, which was i think finding percentage purity. and what did you get for percentage error involving the uncertainty of the balance? in the second...
  3. S

    How did Chem Paper 33 went???

    yesyes what about percentage uncertainty? i looked at the sticker at the bottom of the balance and i read 0.01 which i'm certain was the uncertainty of the balance. i think. %error: [(0.01*2)/mass]*100 can anyone confirm this because i have no idea if that's even remotely right.
  4. S

    Chem p33 confirmations

    i have to do this. i need some peace of mindddd what was your percentage by mass of MgSO4? i got 44% What was contained in FA6? i got NH4+ and Br- What was contained in FA7? i got carbonate ion and i couldn't find the cation for it :/ What gas was evolved when that powdered Na salt was heated...
  5. S

    HOW WAS CHEMISTRY PRACTICAL?

    GUYS was this paper33? what were the questions?
  6. S

    Post ASAP when you have guesstimated Chem p33

    i've never used the word "guesstimated" before pretty awesome whoever coined it
  7. S

    Post ASAP when you have guesstimated Chem p33

    if anyone one gets the faintest clue to what chem p33 is about, the first thing you should do is POST IT HERE! please. i know filza has been posting info (thanks) but i need more of you guys to post what you think, just to be clear.
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