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  1. S

    Chemistry P41 How was it?

    I'm pretty sure it was just to find the value of k. I thought it was weird that they didin't ask for units as well because they usually do, so I re-read the question and it only said 'find the value of k'.
  2. S

    Chemistry P41 How was it?

    I put adenine and phosphate for DNA formation, and alanine and aspartate for protein formation. It's true that adenine could be both though.
  3. S

    Chemistry P41 How was it?

    I think I messed up a bit there. I got something like 2.5x10^3. What did u put for the last part of last question, what reaction formed the cross-links?
  4. S

    Chemistry P41 How was it?

    I chose the hair and the leather
  5. S

    Chemistry P41 How was it?

    I'm pretty sure because the testing for drugs in athletes' urine comes in the Coursebook under gas-liquid, the dyes in foodstuffs is comparable to the dyes in ink (which are usually separated by paper chromatography) and the insecticides dissolved in water I thought was thin-layer because u need...
  6. S

    Chemistry P41 How was it?

    I put thin-layer, paper, gas-liquid (in that order).
  7. S

    Chemistry P41 How was it?

    I don't think it's for reactions that go to completion because the whole page talks about equilibrium reactions (and if the reaction did go to completion, there wouldn't be a case for it to proceed backwards in the same conditions). Just above the table, it says this: *If the E° value of the...
  8. S

    Chemistry P41 How was it?

    Here, I found this: http://chemwiki.ucdavis.edu/Analytical_Chemistry/Electrochemistry/Electrochemistry_and_Thermodynamics#E.c2.b0cell.3a_Standard_Cell_Potential If u go to section 7 (the summary table), the first row says that if Ecell is greater than 0 (it was +0.23 in the exam I think), it...
  9. S

    Chemistry P41 How was it?

    I got 0.1 as rate constant k
  10. S

    Chemistry P41 How was it?

    Yeah I got order 1 for HCl too! for question 1 part 4, where it asked if there were more products or reactants at equilibrium, was it more products? and why could the order of reaction of H2O not be measured in q.2?
  11. S

    M1 mechanics edexcel modular exam

    Guys would there be ECF on the last question. I got the acceleration wrong (I forgot to put g with the mass) and so the tension and force on the pulley are wrong (the ethod is all correct but only answers are wrong) . Would there be ECF for this question??
  12. S

    Chem p51 discussion, it's been 24 hrs

    uhm... not sure maybe 2 or 3?
  13. S

    Chem p51 discussion, it's been 24 hrs

    that was 1 i think
  14. S

    Chem p51 discussion, it's been 24 hrs

    no i just thought about it a few hours ago, i'm pretty sure there wasn't any more anyway.
  15. S

    Chem p51 discussion, it's been 24 hrs

    ok, i was afraid i didn't turn the page and missed out questions...
  16. S

    Chem p51 discussion, it's been 24 hrs

    same, I have mechanics 1 on monday
  17. S

    Chem p51 discussion, it's been 24 hrs

    Yeah! But there weren't any more part questions after that were there?
  18. S

    Chem p51 discussion, it's been 24 hrs

    that wasn't easy, mentioned apparatus with capacity, some calculations and conclusion on how the titres could have been accurate and so on. I think i messed that up a little... what was the indicator? also the very last question of the paper was the one where we had to state the value of x and...
  19. S

    Chem p51 discussion, it's been 24 hrs

    Yeah same. I put that iodine was irritant and to wear goggles and resistant gloves.
  20. S

    Chem p51 discussion, it's been 24 hrs

    I got gradient 7 too! the first part was that solubility decreases when temperature increases because equilibrium shifts to the left (Le Chatelier) right? Also what anomalous points did you get?
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