CHEMISTRY PAPER 3 CONFIDENTIAL - KCSE 2019 ALLIANCE MOCK EXAMINATION

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Each student should be supplied with the following

  1. Burette
  2. Pipette
  3. Pipette filler
  4. Filter funnel
  5. White tile
  6. Clamp and stand
  7. 2 conical flask
  8. 100 cm3glass Beaker (empty)
  9. Stop watch
  10. 100cm3 measuring cylinder
  11. 10cm3measuring cylinder
  12. 250 cm3volumetric flask
  13. Metallic spatula
  14. 6 clean test tubes
  15. Test tube holder
  16. 500ml distilled water
  17. White piece of paper or filter paper
  18. 1 filter paper
  19. 1 labelling paper
  20. Phenolphthalein indicator
  21. About 90cm3 solution K
  22. About 100cm3 solution L
  23. About 70cm3 solution N
  24. About 90cm3 solution P
  25. About 5gNaHCO3
  26. About 0g solid Q
  27. About 5g solid R

Each student should have access to the following solutions:

  1. Mean of heating
  2. 2M NaOH
  3. 2M HNO3
  4. Pb(NO3)
  5. Acidified KMNO4
  6. Potassium iodide solution

NB: the above solutions should be supplied with a dropper each.

SOLUTIONS PREPARATION AND SOLID MEASUREMENTS

  1. SOLUTION K IS 1M H2SO4
  2. SOLUTION L IS 36 M NaOH CONTAINING 14.4g OF NAOH IN 1 LITRE OF THE SOLUTION
  3. SOLUTION N IS 2M HCl
  4. SOLUTION P IS 16 M Na2S2O3(SODIUM THIOSULPHATE)
  5. SOLID Q IS A MIXTURE OF SODIUM SULPHITE(Na2SO3) AND LEAD (II) CARBONATE (PbCO3) MIXED IN THE RATIO 1:1 (should be thoroughly mixed)
  6. SOLID R IS MALEIC ACID

 

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