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  1. P

    chemistry 34

    No definitely positive for me and logically it has to be positive, you made a calculation mistake. and this value is used in other parts.
  2. P

    chemistry 34

    Me too. My feet were really paining from all the standing and the floor near my legs at this center was broken and uneven with crushed gravel kind of material near my seat and I was wearing rather high heels! Really hard to stand there in those shoes and I might have fallen because of that as...
  3. P

    chemistry 34

    Did you test all the gases? For the magnesium ribbon and the add nitric acid parts?
  4. P

    chemistry 34

    Also for the last question, My boiling tube broke with the heat and I kept the 2 pieces behind something in the lab. I didn't tell supervisor and did not sign for this. Can I get in trouble for this?
  5. P

    Did you do chemistry 34 today? If so how was it?

    Did you do chemistry 34 today? If so how was it?
  6. P

    Physics oct/nov 34

    Yes everyone of my friends got a negative gradient that was close to each other's answers and my physics teacher said it was and so did a physics teacher who was a supervisor. Logically also it was negative. You will lose quite a lot of marks unfortunately as this means that table of results...
  7. P

    chemistry 34

    I hope so, but there are marks for tidiness of question paper I think so spillage might be a problem. Also I cannot be sure about calculations, my mind wasn't at ease. Its really hard thinking about the question paper when you are drenched with toilet water and feeling dirty.:( I was also very...
  8. P

    How was chemistry?

    How was chemistry?
  9. P

    Distinguishing Salt analysis ....Chemistry 34.

    See https://www.xtremepapers.com/community/threads/chemistry-34.30175/, what about you? Not so good for me
  10. P

    chemistry 34

    How did it go for you? I think I did ok despite this, I just did calculations like a robot though as I couldn't concentrate but got similar answers to others. The liquid was on cover and blank page behind. Do you lose marks for breaking things, how did it go for you?
  11. P

    chemistry 34

    My mind wasn't at ease but I hope I did Ok. Before the practical, they told us to go to the toilet and I slipped and fell there :(. Wasn't hurt but got quite dirty and my socks were drenched. I could not concentrate properly after that. I slipped again near the testube rack after salt...
  12. P

    Chemistry practical errors

    Hi I have chemistry tomorrow and would like tips on different questions that can come concerning suggest errors and improvements. Also questions asking if a student carries out another experiment what effect it will have on results. Thanks
  13. P

    Chemistry: Post your doubts here!

    For chemistry P3, any tips regarding errors and source of limitation questions of each type? thanks.
  14. P

    chemistry practical doubt-smallest division and estimated error

    You're really really welcome.
  15. P

    chemistry practical doubt-smallest division and estimated error

    Needs decimals, I'd advice putting it to 2dp for all sets of values and make sure you use same amount of dp for all values else you will lose marks. If there is anything with temperature such as titrating with a thermometer (see J13 p31), you must take thermometer readings to 1dp even if the...
  16. P

    chemistry practical doubt-smallest division and estimated error

    E.g for burette Uncertainty in instrument 1cm3 / 2 = plus or minus 0.5cm3 Percentage uncertainty in calculated value, say you took initial reading 23cm3, 0.5/23 X 100= plus or minus 2.2%
  17. P

    chemistry practical doubt-smallest division and estimated error

    Its Half smallest division in instrument divided by 2. If asked for % error, take error instrument (half division), divided by a measurement you took then times 100. Note when 2 measurements are taken like in a burette one initial, one final then titral value's uncertainity is sum of...
  18. P

    Important question

    Depends on subjects but for sciences its best to revise more and do a bit of papers near the exam day. At least for me.
  19. P

    Physics oct/nov 34

    depends on the units of measurements and probably centre's springs provided. A my centre most people got between -0.08 and -1.00
  20. P

    Physics oct/nov 34

    you too
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