laboratory equipment and their functions

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LABORATORY EQUIPMENT

AND THEIR FUNCTIONS

Goggles

Most important piece of lab equipment

)

Protects eyes from broken glass, chemicals and flames.

Beaker

Measures liquids

(but not very accurately)

May be heated

Used to hold or mix chemicals

Stirring Rod

Glass rod used for stirring

BE CAREFUL!

They break easily

Erlenmeyer Flask

Measures liquids

(but not accurately)

May be heated

Used for mixing

Used in titrations

Graduated Cylinder

Measures volumes of liquids accurately

Test Tube

May be heated

Mix chemicals

Holding small amounts of chemicals

Wire Gauze

Spreads out the heat produced by a Bunsen burner

Test Tube Holder

DUHHHHH

It holds a test tube

Test Tube Rack

Holds test tubes in a vertical position.

Allows for clear sight.

Drying rack

Ring Stand

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

Test Tube or Utility

Clamp

Clamps to ring stand on one side.

The other side holds test tubes, burets and flasks.

Ring Clamp

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.

Watch Glass

Used as a beaker cover

Can be used to place small amounts of chemicals on

(looks like a contact lens)

Funnel

Holds filter paper for filtering solutions.

Transferring liquids to smaller narrow necked containers.

Evaporating Dish

Holds small volumes of liquids being evaporated.

Mortar and Pestle

Used for grinding crystals

Plastic Wash Bottle

Dispenses water for rinsing equipment

Clay Triangle

Supports a crucible in a ring stand apparatus.

Crucible and Lid

Holds small amounts of chemicals for heating at high temperatures.

Forceps

Used to pick up small items.

Crucible Tongs

Pick up and hold small hot items like a crucible.

Bunsen Burner (&

Striker)

Controls release of natural gas for burning.

Surgical tubing connects to gas source.

Striker with flint is used to ignite the burner

Electronic Balance

Measures mass in grams

Rubber Stopper

Covers test tube for mixing

Scoopula

Used to transfer solids from one container to another

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