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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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Presentation on theme: "Practical General chemistry Dr.Gharam Ibrahim. A -Lecturer Dr. Gharam Ibrahim; Office: third floor,chemistry department B -Instructors in the Laboratory:"— Presentation transcript:

1 practical General chemistry Dr.Gharam Ibrahim

2 A -Lecturer Dr. Gharam Ibrahim; Office: third floor,chemistry department B -Instructors in the Laboratory: Dr. Faizah Al -Badri C – For contact Phone:0504536189 E-mail:dede12397@hotmail.com Course information Dr.Gharam Ibrahim

3 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 Dr.Gharam Ibrahim

4 Laboratory Safety Rules Dr.Gharam Ibrahim

5 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 Dr.Gharam Ibrahim

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8 Rules 2 Follow all instructions given by the teacher Notify the teacher immediately regarding any accident or unsafe areas Dr.Gharam Ibrahim

9 Rules 3 Wear safety goggles when working with chemicals, flames, or heating devices If you wear contact lenses let your teacher know Dr.Gharam Ibrahim

10 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 Dr.Gharam Ibrahim

11 Rules 5 Keep all long hair tied back Foot wear that completely covers the foot is required Dr.Gharam Ibrahim

12  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 Dr.Gharam Ibrahim

13 Rules 7 If a chemical spills on your skin, notify the teacher and rinse with water for 15 minutes Dr.Gharam Ibrahim

14 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 Dr.Gharam Ibrahim

15 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 Dr.Gharam Ibrahim

16 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 Dr.Gharam Ibrahim

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18 Never pick up broken glassware with your bare hands Rules 11 Dr.Gharam Ibrahim

19 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 Dr.Gharam Ibrahim

20 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 Dr.Gharam Ibrahim

21 Read all labels twice before removing a chemical from the container Only use the type and amount of chemical instructed to use Never touch, taste, or smell a chemical Dr.Gharam Ibrahim

22 Never return unused chemicals to their original container Never mix chemicals unless instructed to do so Dr.Gharam Ibrahim

23 You Should Never… Eat or drink in the lab Use lab glass-ware to eat or drink out of Engage in practical jokes Dr.Gharam Ibrahim

24 In case of an emergency… Know the locations of: fire extinguisher body shower first aid kit eyewash station Dr.Gharam Ibrahim

25 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 Dr.Gharam Ibrahim

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27 Laboratory glassware and equipments Dr.Gharam Ibrahim

28 Beaker Conical flask Dr.Gharam Ibrahim

29 Test tubes Clamp or holder Test tubes stand Dr.Gharam Ibrahim

30 Burette stand Dr.Gharam Ibrahim

31 Graduated pipette Pump Electronic pipette Volumetric pipette Dr.Gharam Ibrahim

32 Volumetric or measuring flask Dr.Gharam Ibrahim

33 Graduated cylinder Dr.Gharam Ibrahim

34 Clock glass Funnel Dr.Gharam Ibrahim

35 Hot plate Balance Dr.Gharam Ibrahim

36 Water bathFume hood Dr.Gharam Ibrahim

37 Oven Furance Dr.Gharam Ibrahim

38 Mortar and pestleFilter papper Spatula Dr.Gharam Ibrahim

39 Washing bottle Brush Dr.Gharam Ibrahim

40 Using Volumetric glass wear 1. 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) Dr.Gharam Ibrahim

41 Rinse with titrant Discharge All Air Bubbles How to clean and use glass wear Dr.Gharam Ibrahim

42 Drain Until Top of Liquid Is In Graduations Dr.Gharam Ibrahim

43 X X O Proper Reading Dr.Gharam Ibrahim

44 MENISCUS Dr.Gharam Ibrahim


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