LABORATORY EQUIPMENT AND THEIR FUNCTIONS Goggles Most important

LABORATORY EQUIPMENT AND THEIR FUNCTIONS

Goggles Most important piece of lab equipment) n Protects eyes from broken glass, chemicals and flames. n

Beaker n Measures liquids (but not very accurately) May be heated n Used to hold or mix chemicals n

Stirring Rod n Glass rod used for stirring n BE CAREFUL! They break easily

Erlenmeyer Flask n Measures liquids (but not accurately) May be heated n Used for mixing n Used in titrations n

Graduated Cylinder n Measures volumes of liquids accurately

Test Tube n May be heated n Mix chemicals

Buret n Measure volumes of solutions in titrations accurately

Watch Glass Used as a beaker cover n Can be used to place small amounts of chemicals on (looks like a contact lens) n

Wire Gauze n Spreads out the heat produced by a Bunsen burner

Test Tube Holder n DUHHHHH It holds a test tube

Scoopula n Used to transfer solids.

Utility Clamp n Clamps to ring stand on one side. The other side holds test tubes, burets and flasks.

Iron Ring Clamp n One side clamps to ring stand. Place wire gauze on ring and it will hold beakers and flasks for heating. Can hold small beakers in place to prevent spilling.

Ring Stand n Multi-purpose, mostly used as a support to heat chemicals and hold burets.

Beaker Tongs n Used to pick up hot beakers.

Crucible Tongs n Pick up and hold small hot items like a crucible.

Forceps n Used to pick up small items.

Test Tube Rack Holds test tubes in a vertical position. n Allows for clear sight. n Drying rack n

Funnel n n Holds filter paper for filtering solutions. Transferring liquids to smaller narrow necked containers.

Pipet n Transfers small volumes of liquids.

Plastic Wash Bottle n Dispenses water for rinsing equipment

Mortar and Pestle n Used for grinding crystals

Evaporating Dish n Holds small volumes of liquids being evaporated.

Clay Triangle n Supports a crucible in a ring stand apparatus.

Crucible and Lid n Holds small amounts of chemicals for heating at high temperatures.

Bunsen Burner & Striker n n n Controls release of natural gas for burning. Surgical tubing connects to gas source. Striker with flint is used to ignite the burner

Balance n Measures mass in grams

Electronic Balance n Measures mass in grams