Laboratory Equipment and Their Functions

This video tutorial by Miss Pacino covers the identification and use of various lab equipment. It explains the function and precision of tools like Bunsen burners, ring stands, crucibles, mortar and pestle, scoopulas, electronic scales, test tubes, beakers, pipettes, flasks, graduated cylinders, volumetric glassware, stirring rods, thermometers, and centrifuges. The video emphasizes proper handling techniques and the importance of precision in measurements.

What is the primary function of a Bunsen burner in the lab?

• To measure liquid volumes

• To provide a flame for heating

• To stir solutions

• To weigh chemicals

Which tool is used to safely handle hot crucibles?

• Crucible tongs

• Ring stand

• Scoopula

• Beaker tongs

What should you avoid doing when cleaning a mortar and pestle?

• Using sand

• Using a brush

• Using a paper towel

• Using water

Why should chemicals not be placed directly on an electronic scale?

• It can damage the scale

• It provides inaccurate measurements

• It is against lab rules

• It is difficult to clean

What is the main use of a test tube in the lab?

• To measure precise volumes

• To heat liquids

• To conduct small-scale reactions

• To weigh solids

Which piece of equipment is best for measuring precise liquid volumes?

• Beaker

• Erlenmeyer flask

• Graduated cylinder

• Test tube

What is the purpose of a volumetric flask?

• To measure mass

• To prepare solutions of specific concentrations

• To stir solutions

• To heat solutions

How should a pipette bulb be used with a pipette?

• By inserting the pipette fully into the bulb

• By using it to draw liquid into the pipette

• By using it as a stopper

• By using it to measure temperature

What is the function of a hot plate stirrer?

• To separate mixtures

• To weigh chemicals

• To heat and stir samples

• To measure temperature

What is the centrifuge used for in the lab?

• To heat samples

• To stir solutions

• To separate small solids from liquids

• To measure liquid volumes