practical General chemistry Dr.Gharam Ibrahim

A -Lecturer Dr. Gharam Ibrahim; Office: third floor,chemistry department B -Instructors in the Laboratory: Dr. Faizah Al -Badri C – For contact Phone: Course information 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 Dr.Gharam Ibrahim

Laboratory Safety Rules Dr.Gharam Ibrahim

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

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

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

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

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

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

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

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

Laboratory glassware and equipments Dr.Gharam Ibrahim

Beaker Conical flask Dr.Gharam Ibrahim

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

Burette stand Dr.Gharam Ibrahim

Graduated pipette Pump Electronic pipette Volumetric pipette Dr.Gharam Ibrahim

Volumetric or measuring flask Dr.Gharam Ibrahim

Graduated cylinder Dr.Gharam Ibrahim

Clock glass Funnel Dr.Gharam Ibrahim

Hot plate Balance Dr.Gharam Ibrahim

Water bathFume hood Dr.Gharam Ibrahim

Oven Furance Dr.Gharam Ibrahim

Mortar and pestleFilter papper Spatula Dr.Gharam Ibrahim

Washing bottle Brush Dr.Gharam Ibrahim

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

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

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

X X O Proper Reading Dr.Gharam Ibrahim

MENISCUS Dr.Gharam Ibrahim