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  1. Z

    CHEMISTRY TITRATION HELP

    "Concentrated sulfuric acid reacts with KMnO4 to give Mn2O7, which can be explosive.[9] Similarly concentrated hydrochloric acid gives chlorine. The Mn-containing products from redox reactions depend on the pH. Acidic solutions of permanganate are reduced to the faintly pink manganese(II) ion...
  2. Z

    CHEMISTRY TITRATION HELP

    this is what the examiners say abt titrations: Titrations were generally performed well. Burette readings for “accurate” titrations were recorded to 2 decimal places (nearest 0.05 cm as required by the syllabus). The Examiners were pleased to see that few candidates recorded “impossible” burette...
  3. Z

    final final details abt practicals!

    yes FeSO4 is coming!!! a hydrated salt ....................thts wht i heard!! besides no electricity question in phys 33..........
  4. Z

    final final details abt practicals!

    ammonium nitrate+KMnO4 results in an explosion!!!!!!!!!!!!!!!!!!!!!!!!! confirm it before writing it everywhere!!!!
  5. Z

    thermal cumin this year for sure !!

    HAHAHA SO MY PREDICTION WAS RIGHT AND MRI CAME!!! @filza this is wht i hear abt phys 33 so from where the hell does the electricity question come in paper 33? and stop saying ammonium nitrate+KMnO4 is coming because this reaction results in an explosion!!!!!!!!!!!
  6. Z

    WEBSITE FOR NOTES ETC

    ammonium nitrate+KMnO4 results in an EXPLOSION are you sure this is whats coming tommorow??????????? :O: :O: :O: :O:
  7. Z

    Chemistry p33

    I have been hearing the same thing about chemistry p 33 but its all wrong because there is an explosion if ammonium nitrate is mixed with KMnO4!!!!!!!!!!!! so there is some other hydrated salt for sure. and i heard moments involving prisms and rulers is coming in phys 33 there is no electricity...
  8. Z

    CHEMISTRY TITRATION HELP

    In case a titration is coming this thursday in paper 33 i need help in the following : please 1. How many times do we perform the titration? 2, 3 ,or 4 2. to how many significant figures is the burette reading to be quoted? 3. What does the examiner mean by a rough titre? 4. do we have to fill...
  9. Z

    thermal cumin this year for sure !!

    no he is right just revise everything and i think mri is coming though ultrasound came in nov 2010
  10. Z

    AS level organic chemistry

    notes on organic chemistry alcohols, hydrocarbons,halogenoalkanes etc
  11. Z

    AS level organic chemistry

    notes on organic chemistry alcohols, hydrocarbons,halogenoalkanes etc
  12. Z

    Need Bio p3 and p5 Nov 1999------URGENT PLZZZZ!!!!

    why do u need these??? i have these and can send them to you but tell me why u need them!
  13. Z

    Books

    chemistry from peter cann and physics from robert hutchings
  14. Z

    bio apparatus...

    when i gave bio 33 last year the microscope wasnt working so i called the supervisor and complained and the invigilator saw to it wht the supervisor was doing so you can always complain no marks deducted for this
  15. Z

    final final details abt practicals!

    why do u need bio p5 and p3 nov 1999? because i have these and can pm you..........
  16. Z

    thermal cumin this year for sure !!

    guys all these come every year!!! ultrasound came in november 2010!! and negative feedback in june 2010 the same question and thermal physics also came in june 2010!! so its no big deal if it comes again this year! and like this gravitation capacitance communicating information and even simple...
  17. Z

    Chemistry P52

    @princesszahra plz pm me the solved papers you have of chem 52. thank you.
  18. Z

    Physics A2 - ppr 4 expected ppr...?!!

    :%) :%) :%) :crazy: :crazy: :fool: :fool: :fool: @grimreaper123 probably you havent gone through your past papers!!! so here are the topics that come every year in every paper!! gravitational fields (usually the first question) capacitance/electric fields(one of these two)...
  19. Z

    notes on Titration Calculations

    ur welcome 8) 8) 8)
  20. Z

    Answering questions on electrode potentials

    A2 level electrochemistry
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