Practical General chemistry Dr.Gharam Ibrahim. A -Lecturer Dr. Gharam Ibrahim; Office: third...

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practical General chemistry Dr.Gharam Ibrahim

Transcript of Practical General chemistry Dr.Gharam Ibrahim. A -Lecturer Dr. Gharam Ibrahim; Office: third...

Page 1: Practical General chemistry Dr.Gharam Ibrahim. A -Lecturer Dr. Gharam Ibrahim; Office: third floor,chemistry department B -Instructors in the Laboratory:

Dr.Gharam Ibrahim

practical General chemistry

Page 2: Practical General chemistry Dr.Gharam Ibrahim. A -Lecturer Dr. Gharam Ibrahim; Office: third floor,chemistry department B -Instructors in the Laboratory:

Dr.Gharam Ibrahim

A -LecturerDr. Gharam Ibrahim; Office: third floor ,chemistry department

B -Instructors in the Laboratory:Dr. Faizah Al -Badri

C – For contactPhone:0504536189E-mail:[email protected]

Course information

Page 3: Practical General chemistry Dr.Gharam Ibrahim. A -Lecturer Dr. Gharam Ibrahim; Office: third floor,chemistry department B -Instructors in the Laboratory:

Dr.Gharam Ibrahim

Supplementary material: •Slide notes available on the intranet•Practical Lab. manual and lab. report available on the intranet and the copy center.Course Assessment (Assessment System):Practical course: •Attendances 5• Lab report 5•First exam 10•Final exam 10

Page 4: Practical General chemistry Dr.Gharam Ibrahim. A -Lecturer Dr. Gharam Ibrahim; Office: third floor,chemistry department B -Instructors in the Laboratory:

Laboratory Safety Rules

Page 5: Practical General chemistry Dr.Gharam Ibrahim. A -Lecturer Dr. Gharam Ibrahim; Office: third floor,chemistry department B -Instructors in the Laboratory:

Rules 1• Know safety symbols• They appear in your laboratory activities• They will alert you to possible dangers• They will remind you to work carefully

Page 6: Practical General chemistry Dr.Gharam Ibrahim. A -Lecturer Dr. Gharam Ibrahim; Office: third floor,chemistry department B -Instructors in the Laboratory:
Page 7: Practical General chemistry Dr.Gharam Ibrahim. A -Lecturer Dr. Gharam Ibrahim; Office: third floor,chemistry department B -Instructors in the Laboratory:

Dr.Gharam Ibrahim

Page 8: Practical General chemistry Dr.Gharam Ibrahim. A -Lecturer Dr. Gharam Ibrahim; Office: third floor,chemistry department B -Instructors in the Laboratory:

Dr.Gharam Ibrahim

Rules 2

• Follow all instructions given by the teacher

• Notify the teacher immediately regarding any accident or unsafe areas

Page 9: Practical General chemistry Dr.Gharam Ibrahim. A -Lecturer Dr. Gharam Ibrahim; Office: third floor,chemistry department B -Instructors in the Laboratory:

Dr.Gharam Ibrahim

Rules 3

• Wear safety goggles when working with chemicals, flames, or heating devices

• If you wear contact lenses let your teacher know

Page 10: Practical General chemistry Dr.Gharam Ibrahim. A -Lecturer Dr. Gharam Ibrahim; Office: third floor,chemistry department B -Instructors in the Laboratory:

Dr.Gharam Ibrahim

Rules 4

• In case of emergency in which a chemical goes into one’s eye, use the eyewash station

• Flush in water for 15 mins. and notify the teacher

Page 11: Practical General chemistry Dr.Gharam Ibrahim. A -Lecturer Dr. Gharam Ibrahim; Office: third floor,chemistry department B -Instructors in the Laboratory:

Dr.Gharam Ibrahim

Rules 5

• Keep all long hair tied back

• Foot wear that completely covers the foot is required

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Dr.Gharam Ibrahim

You should wearing suitable lab coat

Lab coats can serve a number of purposes – protection from chemical splash, fire resistance, or clothing protection.

Rules 6

Page 13: Practical General chemistry Dr.Gharam Ibrahim. A -Lecturer Dr. Gharam Ibrahim; Office: third floor,chemistry department B -Instructors in the Laboratory:

Dr.Gharam Ibrahim

Rules 7

• If a chemical spills on your skin, notify the teacher and rinse with water for 15 minutes

Page 14: Practical General chemistry Dr.Gharam Ibrahim. A -Lecturer Dr. Gharam Ibrahim; Office: third floor,chemistry department B -Instructors in the Laboratory:

Dr.Gharam Ibrahim

• Only electrical plugs are to be placed into an electrical outlet

• Unplug electrical equipment after use

• Keep all electrical cords, wires, and appliances away from water

Rules 8

Page 15: Practical General chemistry Dr.Gharam Ibrahim. A -Lecturer Dr. Gharam Ibrahim; Office: third floor,chemistry department B -Instructors in the Laboratory:

Dr.Gharam Ibrahim

• Never look into a container as you are heating it

• Never point the end of a test tube being heated at yourself or others

Rules 9

Page 16: Practical General chemistry Dr.Gharam Ibrahim. A -Lecturer Dr. Gharam Ibrahim; Office: third floor,chemistry department B -Instructors in the Laboratory:

Dr.Gharam Ibrahim

• Never leave a heat source unattended • Heated metal and glass looks

cool, use tongs or gloves before handling

•Do not place hot glassware directly on lab desk or in cold water

Rules 10

Page 17: Practical General chemistry Dr.Gharam Ibrahim. A -Lecturer Dr. Gharam Ibrahim; Office: third floor,chemistry department B -Instructors in the Laboratory:

Dr.Gharam Ibrahim

Page 18: Practical General chemistry Dr.Gharam Ibrahim. A -Lecturer Dr. Gharam Ibrahim; Office: third floor,chemistry department B -Instructors in the Laboratory:

Dr.Gharam Ibrahim

• Never pick up broken glassware with your bare hands

Rules 11

Page 19: Practical General chemistry Dr.Gharam Ibrahim. A -Lecturer Dr. Gharam Ibrahim; Office: third floor,chemistry department B -Instructors in the Laboratory:

Dr.Gharam Ibrahim

• Do NOT apply makeup in the lab. Makeup can also pick up and concentrate fumes from the air, and hold them against the skin causing irritation.

Rules 12

Page 20: Practical General chemistry Dr.Gharam Ibrahim. A -Lecturer Dr. Gharam Ibrahim; Office: third floor,chemistry department B -Instructors in the Laboratory:

Dr.Gharam Ibrahim

Chemical Safety

• Transfer chemicals carefully!

• Keep lids on chemical containers when not in use

• When diluting an acid, pour the acid into water

• Consider all chemicals dangerous

Page 21: Practical General chemistry Dr.Gharam Ibrahim. A -Lecturer Dr. Gharam Ibrahim; Office: third floor,chemistry department B -Instructors in the Laboratory:

Dr.Gharam Ibrahim

• Read all labels twice before removing a chemical from the container

• Only use the type and amount of chemicalinstructed to use

• Never touch, taste, or smell a chemical

Page 22: Practical General chemistry Dr.Gharam Ibrahim. A -Lecturer Dr. Gharam Ibrahim; Office: third floor,chemistry department B -Instructors in the Laboratory:

Dr.Gharam Ibrahim

• Never return unused chemicals to their original container

• Never mix chemicals unless instructed to do so

Page 23: Practical General chemistry Dr.Gharam Ibrahim. A -Lecturer Dr. Gharam Ibrahim; Office: third floor,chemistry department B -Instructors in the Laboratory:

Dr.Gharam Ibrahim

You Should Never…

• Eat or drink in the lab

• Use lab glass-ware to eat or drink out of

• Engage in practical jokes

Page 24: Practical General chemistry Dr.Gharam Ibrahim. A -Lecturer Dr. Gharam Ibrahim; Office: third floor,chemistry department B -Instructors in the Laboratory:

Dr.Gharam Ibrahim

In case of an emergency…

• Know the locations of:

fire extinguisher body shower

first aid kit eyewash station

Page 25: Practical General chemistry Dr.Gharam Ibrahim. A -Lecturer Dr. Gharam Ibrahim; Office: third floor,chemistry department B -Instructors in the Laboratory:

Dr.Gharam Ibrahim

Remember to…

• Stay at your work station • Maintain a clean work area• Read and follow all directions• Report any spills, accidents,

or injury to the teacher immediately• Clean and put away all equipment at

the end of the lab period• Dispose of waste products according

to instruction• Clean your hand before go out the lab

Page 26: Practical General chemistry Dr.Gharam Ibrahim. A -Lecturer Dr. Gharam Ibrahim; Office: third floor,chemistry department B -Instructors in the Laboratory:

Dr.Gharam Ibrahim

Page 27: Practical General chemistry Dr.Gharam Ibrahim. A -Lecturer Dr. Gharam Ibrahim; Office: third floor,chemistry department B -Instructors in the Laboratory:

Dr.Gharam Ibrahim

Laboratory glassware and equipments

Page 28: Practical General chemistry Dr.Gharam Ibrahim. A -Lecturer Dr. Gharam Ibrahim; Office: third floor,chemistry department B -Instructors in the Laboratory:

Dr.Gharam Ibrahim

Beaker Conical flask

Page 29: Practical General chemistry Dr.Gharam Ibrahim. A -Lecturer Dr. Gharam Ibrahim; Office: third floor,chemistry department B -Instructors in the Laboratory:

Dr.Gharam Ibrahim

Test tubes Clamp or holder

Test tubes stand

Page 30: Practical General chemistry Dr.Gharam Ibrahim. A -Lecturer Dr. Gharam Ibrahim; Office: third floor,chemistry department B -Instructors in the Laboratory:

Dr.Gharam Ibrahim

Burette stand

Page 31: Practical General chemistry Dr.Gharam Ibrahim. A -Lecturer Dr. Gharam Ibrahim; Office: third floor,chemistry department B -Instructors in the Laboratory:

Dr.Gharam Ibrahim

Graduated pipette

Pump Electronic pipette

Volumetric pipette

Page 32: Practical General chemistry Dr.Gharam Ibrahim. A -Lecturer Dr. Gharam Ibrahim; Office: third floor,chemistry department B -Instructors in the Laboratory:

Dr.Gharam Ibrahim

Volumetric or measuring flask

Page 33: Practical General chemistry Dr.Gharam Ibrahim. A -Lecturer Dr. Gharam Ibrahim; Office: third floor,chemistry department B -Instructors in the Laboratory:

Dr.Gharam Ibrahim

Graduated cylinder

Page 34: Practical General chemistry Dr.Gharam Ibrahim. A -Lecturer Dr. Gharam Ibrahim; Office: third floor,chemistry department B -Instructors in the Laboratory:

Dr.Gharam Ibrahim

Clock glass Funnel

Page 35: Practical General chemistry Dr.Gharam Ibrahim. A -Lecturer Dr. Gharam Ibrahim; Office: third floor,chemistry department B -Instructors in the Laboratory:

Dr.Gharam Ibrahim

Hot plate Balance

Page 36: Practical General chemistry Dr.Gharam Ibrahim. A -Lecturer Dr. Gharam Ibrahim; Office: third floor,chemistry department B -Instructors in the Laboratory:

Dr.Gharam Ibrahim

Water bath Fume hood

Page 37: Practical General chemistry Dr.Gharam Ibrahim. A -Lecturer Dr. Gharam Ibrahim; Office: third floor,chemistry department B -Instructors in the Laboratory:

Dr.Gharam Ibrahim

Oven Furance

Page 38: Practical General chemistry Dr.Gharam Ibrahim. A -Lecturer Dr. Gharam Ibrahim; Office: third floor,chemistry department B -Instructors in the Laboratory:

Dr.Gharam Ibrahim

Mortar and pestle Filter papper

Spatula

Page 39: Practical General chemistry Dr.Gharam Ibrahim. A -Lecturer Dr. Gharam Ibrahim; Office: third floor,chemistry department B -Instructors in the Laboratory:

Dr.Gharam Ibrahim

Washing bottle Brush

Page 40: Practical General chemistry Dr.Gharam Ibrahim. A -Lecturer Dr. Gharam Ibrahim; Office: third floor,chemistry department B -Instructors in the Laboratory:

Dr.Gharam Ibrahim

Using Volumetric glass wear1. Rinse with water and solution to be used

2. Fill to above graduation

3. Wipe off outside of pipette or burette

4. Drain to graduation( bottom of meniscus to top of graduation)

5. Touch tip to waste vessel

6. Transfer by gravity(vertical - don’t force)

7. Touch tip to inside of receiving flask

(clean pipette)

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Rinse with titrant

Discharge All Air Bubbles

How to clean and use glass wear

Page 42: Practical General chemistry Dr.Gharam Ibrahim. A -Lecturer Dr. Gharam Ibrahim; Office: third floor,chemistry department B -Instructors in the Laboratory:

Dr.Gharam Ibrahim

Drain Until Top of LiquidIs In Graduations

Page 43: Practical General chemistry Dr.Gharam Ibrahim. A -Lecturer Dr. Gharam Ibrahim; Office: third floor,chemistry department B -Instructors in the Laboratory:

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X

XO

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