Page 150 - Chemistry

3
(ii) Add 3 drops of methyl orange to 2cm of solution R

MATUNGU DISTRICT
CONFIDENTIAL
INSTRUCTIONS.
In addition to the apparatus and fittings found in the laboratory each candidate should have:
1. One 25ml pipette
2. One 3-way pipette filler
3. One 0-50m/s Burrette
4. Two 250 m/s conical flask
5. One stop watch /clock
6. One 250ml glass beaker
7. One 100ml measuring cylinder
8. One 100ml glass beaker
o
9. One thermometer (-10 to 110 C)
10. One label
11. One piece of white paper
12. One measuring cylinder (10mls)
13. Six dry clean test tube on test-tube tack
14. One boiling tube
15. One clean dry metallic spatula
3
16. 250cm distilled water in wash bottle
17. One filter paper (dry)
18. One filter funnel
19. One glass rod
20. About 0.5g sodium hydrogen carbonate supplied in a stoppered bottle
21. 0.5g of solid F (accurately measured)
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22. About 130cm of sodium thiosulphate (0.25M sodium thiosulphate, solution D)
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23. About 30cm of 2.0M HCl (solution E)
24. About 0.5g solid T
25. About 0.5g solid X
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26. About 180cm of solution B
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27. About 80cm of solution A

Access to:
1. Phenolphthalein indicator supplied with a dropper
2. Bunsen burner (source of heat)
3. Acidified potassium manganate (VII) solution
End nd nd nd
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Form 4 Chemistry 233/3 orm 4 Chemistry 233/3 orm 4 Chemistry 233/3 orm 4 Chemistry 233/3
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4. Concentrated sulpuric acid 5 5 5 5

5. Ethanol in a stoppered bottle

NOTE:
1. Solid X – Oxalic acid
2. Solid T – Calcium Chloride
3. Solution A – 0.5M NaOH
4. solution B – 0.5M HCl
5. Solid F – ZnCO 3 (Zinc carbonate)
Question 1.
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