General Chemistry Lab Techniques Quiz

General Chemistry Lab - Basic Laboratory Techniques

• The course is A0111302
• The instructor is Aya Khalaf
• The course is in the Faculty of Arts & Sciences, Allied Sciences department.
• The module covers basic laboratory techniques and safety procedures in a chemistry lab.

Safety Rules

• Know locations of safety equipment (showers, eyewashes, fire extinguishers) and emergency exits.
• Avoid contact with chemicals. Minimize chemical exposures.
• No horseplay is allowed.
• Assume all unknown chemicals are highly toxic.
• Post warning signs for unusual hazards, hazardous materials, and equipment.
• Avoid distracting other lab personnel.
• Use equipment correctly and for its intended purpose.
• Add acid to water, not water to acid.
• Avoid adding solids to hot liquids.
• Emphasize safety and chemical hygiene.
• Keep containers closed and clearly labeled.
• Do not taste or sniff chemicals.
• Do not eat, drink, or apply cosmetics where hazardous chemicals are used.
• Do not use mouth suction for pipetting.
• Wash exposed skin before leaving.
• Secure loose clothing and hair.
• Wear safety glasses or goggles when working with chemicals.

Safety Equipment

• Safety Shower: Used to wash off chemical spills.
• Eye Washer: Used to flush chemicals out of the eyes.
• Fire Extinguisher: Used to extinguish small fires.
• Fire Blanket: Used to smother small fires.
• Fume Hood: Used to contain hazardous fumes.
• First Aid: Provides immediate care for injuries.

Safety Precautions

• Determine potential hazards and take safety precautions before any work begins.
• Do not pour chemicals down the drain; use designated waste disposal containers.
• Keep sink traps filled with running water to prevent chemical buildup.
• Perform hazardous tasks in properly functioning fume hoods.
• Avoid working alone in a hazardous lab.
• Employees need access to related safety manuals and protocols.
• Limit access to labs and support areas to authorized personnel.
• Equipments should undergo regular inspections and maintenance.
• Designate proper waste storage locations.
• Avoid cell phone or earplug usage during experimental work.
• Do not use synthetic fiber clothing when working with flammable substances.
• Avoid wearing jewelry.

Chemical Observations

• Weighing: Uses an analytical balance (with accuracy standards).
• Measuring Liquids: Uses graduated cylinders, burettes, pipettes, volumetric flasks, and beakers
• Temperature: Uses thermometers.

Volume measurements

• SI unit for volume is m^3
• Volume of liquids are measured with measuring cylinders
• Pay attention to the meniscus while reading the volume.

Bunsen Burner

• Blue flame (high temperature, sufficient oxygen, non-luminous).
• Yellow flame (low temperature, insufficient oxygen, luminous).
• Adjust gas supply to achieve desired flame. (open/close air hole)

Lab Equipment

• The presentation lists a variety of glassware and equipment commonly found in a chemistry laboratory.

Report

• Data and calculations are on page 13
• Questions are on page 16 (including various question types, e.g. identifying types of glassware, defining flames etc.)