Works of the first year student from UTK

2. FACULTY OF
TEXTILE INDUSTRIES.
Textile
Chemical
Engineering.

3. • Pipette.
• Burette.
• Analytical Balance.
Equipment
• Changed from “solid” to “solution”.
• “Concentration” to “Dilution” of
solution.
Solution
preparation.
• Acid : Hydrochloric. (HCl)
• Base : Sodium hydroxide. (NaOH)Titration.

4. EQUIPMENT
Pipette.
Burette.
Analytical Balance.

5. Pipette.
Volumetric pipette.
Or
Transfer pipette.
Measuring pipette.

6. Measuring pipette.

7. How to use… Measuring pipette.
• Measuring pipette is a type
of pipette used to measure the
volume of the liquid dispensed
• They come in a variety of sizes in
that the volume is found by
calculating the difference of the
liquid level before and after.

8. Volumetric pipette or Transfer
pipette.

9. How to use… Volumetric pipette or
Transfer pipette.
• Place the tip of the pipet into the
receiving vessel and remove your
finger to allow the liquid to drain.
• Touch the pipet once to the side of
the vessel. There will be a small
amount of liquid in the tip.

10. What the difference…
These have a 0 mL mark just
above the end of the pipette. A volume is
pulled into the pipette, sometimes to the
maximum volume, then the needed volume
is aliquot out.
These pipettes have a large bulb
with a long narrow portion above with a
single graduation mark as it is calibrated
for a single volume.

11. Clean pipette up..
Add some liquid inside pipette,
roll around and drain out.
Wipe out liquid by clean tissue
or clean napkin.

12. Pipette helper…
Rubble bulb. Syringe bulb.

13. How to use bulb.
Rubble bulb. Syringe bulb.

14. Tip for pipette.
Take the solution over marked
line.
Slowly to take solution out until
marked line.

15. How to “take” pipette.
Do this. Not do this.

16. Tip!!
Meniscus is under curves of
solution and on marked line.
Transfer liquid in pipette to beaker,
last tube touch some inside beaker.

17. Burette.

18. Equipment for Titration.
Stand. Clamp stand.

19. How to use … Burette.
Ready to use. Control titrant drop.

20. How to use … Burette.
Add solution. Meniscus of titrant.

21. Meniscus of solution in burette.

22. Tip of burette…
Meniscus. Control cock.

23. Analytical Balance.

24. Before use… Analytical balance.
Open cover. Ready.

25. First check… Analytical balance.
(This most important foruseAnalytical balance.)
Bubble not in the middle. Bubble in the middle.

26. Second check… Analytical balance.
Top door. Side doors. (Left – Right)

27. Third check… Analytical balance.
(Please clean if dirty.)
Checking. Cleaning.

28. Plug in, after checked and when you want to use.

29. What do “Analytical balance” tell you?

30. What did you see…?
Maximum weight. After plug in.

31. How to use… Analytical balance.
Turn on. After put the button.

32. How to use… Analytical balance.
Waiting until show “0.000 g.” Slide the door.

33. How to use… Analytical balance.
Take “beaker” inside. Close the door.

34. How to use… Analytical balance.
Wait until the number “stop” Put “Tare” button, for tarring
weight.

35. How to use… Analytical balance.
Measure substance. Add substance into beaker.

36. How to use… Analytical balance.
Enough for substance. Wait until the number “stop”
again.

37. How to use… Analytical balance.
Take a beaker out. Clear weight.

38. How to use… Analytical balance.
Turn off. Cleaning.

39. How to use… Analytical balance.
After used. Done!

40. When you “plug out” …
Don’t do this !! Please do it.

41. Solution
Preparation.
Solid.
Solution.
Concentration of solution.
Dilution of solution.

42. Equipment for preparation of
solution.
Analytical balance. Beaker.

43. Scoopula. Glass stirring rod.
Equipment for preparation of
solution.

44. Plastic pipette. Dropper.
Equipment for preparation of
solution.

45. Volumetric flask. Funnel glass.
Equipment for preparation of
solution.

46. Distilled water. Wash bottle.
Equipment for preparation of
solution.

47. Substance for preparation of solution.
Sodium hydroxide. (Solid) Sodium hydroxide. (Solution)

48. Preparation of solution from
“solid”

49. Preparation of solution from
“solid”
Sodium hydroxide. (Solid) Put solid substance in beaker.

50. Preparation of solution from
“solid”
Add distilled water with sodium
hydroxide in beaker.
Add more distilled water until
can stir.

51. Preparation of solution from
“solid”
• Stir until solution mix
together.
• Cool down solution.

52. Preparation of solution from
“solid”
Before. After.

53. Preparation of solution from
“solid”
Before. After.

54. “Preparation of solution” to
“Concentration of solution”.

55. “Preparation of solution” to
“Concentration of solution”.
Put funnel on top of volumetric
pipette.
Transfer solution to volumetric
flak.

56. “Preparation of solution” to
“Concentration of solution”.
Use glass stirring rod for help
to transfer solution. Slow down to transfer.

57. “Preparation of solution” to
“Concentration of solution”.
Use wash bottle, wash beaker
and glass stirring rod.
Add some water and stir, do
around 2-3 turns.

58. “Preparation of solution” to
“Concentration of solution”.
Add washed water in volumetric
flak.
Wash around inside funnel for
cleansing substance.

59. “Preparation of solution” to
“Concentration of solution”.
Add more distilled water. Until almost marked line.

60. “Preparation of solution” to
“Concentration of solution”.
Be careful. Use plastic pipette for help.

61. “Preparation of solution” to
“Concentration of solution”.
Always check marked line. Add more, around 2-3 drops.

62. “Preparation of solution” to
“Concentration of solution”.
Slowly to do. Done, meniscus.

63. “Preparation of solution” to
“Concentration of solution”.
Close cock. Ready to shake.

64. “Preparation of solution” to
“Concentration of solution”.
Slow down to shake. Be careful.

65. “Preparation of solution” to
“Concentration of solution”.
Before shake. After shake.

66. “Preparation of solution” to
“Concentration of solution”.
Drain in save bottle and
write…
Name of solution : …………………...
Concentrate : …………………...
Solvent : ………...…………
Date : …………………...
Lecturer : ……………………………......
Name : ……………………………......
……………………………......
Faculty : ……………………………......
University : ……………………………......

67. “Concentration” to “Dilution” of
solution.
Sodium hydroxide solution. Pipette some solution.

68. “Concentration” to “Dilution” of
solution.
Pipette over mark line. Take over out.

69. “Concentration” to “Dilution” of
solution.
Meniscus. Drain to empty beaker.

70. “Concentration” to “Dilution” of
solution.
Touch somewhere inside
beaker.
Stand pipette and take solution
out.

71. “Concentration” to “Dilution” of
solution.
Drain solution to volumetric
flak.
Clean beaker and glass stirring
rod, 3 times.

72. “Concentration” to “Dilution” of
solution.
Drain water to volumetric flak. Clean around funnel inside.

73. “Concentration” to “Dilution” of
solution.
Drop more. Meniscus on marked line.

74. “Concentration” to “Dilution” of
solution.

75. “Concentration” to “Dilution” of
solution.
After shake. Transfer to beaker.

76. Titration.
Indicator
Base
Acid

77. Equipment for Titration.
Burette. Funnel.

78. Equipment for Titration.
Erlenmeyer flak. Beaker.

79. Equipment for Titration.
Glass stirring rod. Dropper.

80. Substance for Titration.
Hydrochloric. (HCl) Sodium hydroxide. (NaOH)

81. Hydrochloric solution. – Sample.
Pipette HCl. 10 ml. (volumetric pipette)

82. Hydrochloric solution. – Sample.
Over marked line. Meniscus marked line.

83. Hydrochloric solution. – Sample.
Transfer to Erlenmeyer flak. Pipette again, use 2-3
flaks/titration.

84. Transfer solution to Erlenmeyer flak.
Touch inside flak. Don’t do this.

85. Indicator for Titration.
Phenolphthalein. (PP) Add 2-3 drops in acid
substance.

86. Drop indicator in “sample”

87. Sodium hydroxide solution. –
Standard.
Burette. Transfer standard solution in
burette.

88. Sodium hydroxide solution. –
Standard.
Draining. Use dropper when almost
marked line.

89. Sodium hydroxide solution. –
Standard.
Slowly. Done.

90. Titration.
Solution in flak called “Titrand”.
(Sample)
Solution in burette called
“Titrant”. (Standard)

91. Titration.
Control cock. Handing.

92. Titration.
Hand control. One drop.

93. Titration.
Shake always. Focus!

94. Titration.
Shake it!! Indicator reaction.

95. Titration.
Pinky dot. Don’t stop to shake.

96. Titration.
Drop and shake. Clam down.

97. Titration.
Most be careful. Try one more drop.

98. Titration.
Equivalence point, color
changed. End point.

99. Titration.
• Look at burette.
• How much solution used?
- 7.8 ml. of titrant.

100. Titration.