Lab EquipmentLab EquipmentChemistry NotesChemistry Notes

BeakerBeakerBeakers hold solids Beakers hold solids or liquids. Beakers or liquids. Beakers can be used to heat can be used to heat nonvolatile liquids nonvolatile liquids and solids.and solids.

Beakers are NOT Beakers are NOT to be used to to be used to

measure liquid measure liquid volume!!!volume!!!

Note how this is Note how this is labeled labeled

approximate

Erlenmeyer FlaskErlenmeyer FlaskErlenmeyer flasks Erlenmeyer flasks hold solids or liquids hold solids or liquids that may release that may release gases during a gases during a reaction or that are reaction or that are likely to splatter if likely to splatter if stirred or heated.stirred or heated.

Erlenmeyer flasks are Erlenmeyer flasks are also used in a lab also used in a lab procedure known as procedure known as titrationtitration..

Graduated CylinderGraduated Cylinder

A graduated A graduated cylinder is used cylinder is used to measure to measure volumes of volumes of liquids.liquids.

Test Test TubesTubes

Test Tube HolderTest Tube Holder

A test tube holder A test tube holder is useful for is useful for holding a test holding a test tube which is too tube which is too hot to handle.hot to handle.

Test Tube BrushesTest Tube Brushes

Test tube brushes Test tube brushes are used to clean are used to clean test tubes and test tubes and graduated cylinders.graduated cylinders.Forcing a large brush Forcing a large brush into a small test tube into a small test tube will often break the will often break the tube.tube.

Test Tube RacksTest Tube Racks

Test tube racks are for holding and Test tube racks are for holding and organizing test tubes on the laboratory organizing test tubes on the laboratory

counter. counter. Plastic racks may melt when placed Plastic racks may melt when placed in contact with very hot test tubes.in contact with very hot test tubes.

Watch GlassWatch Glass

A watch glass is A watch glass is used to hold a small used to hold a small amount of solid, amount of solid, such as the product such as the product of a reaction.of a reaction.

Watch glasses are Watch glasses are also used to cover a also used to cover a beaker containing a beaker containing a splattering reaction.splattering reaction.

Glass Stirring RodGlass Stirring Rod

A glass rod is used to A glass rod is used to manually stir manually stir solutions. It can also solutions. It can also be used to transfer a be used to transfer a single drop of a single drop of a solution.solution.

DropperDropper

A medicine dropper A medicine dropper is used to transfer is used to transfer a small volume of a small volume of liquid (less than liquid (less than one mL).one mL).

We try to use disposable droppers to avoid We try to use disposable droppers to avoid contamination!contamination!

ForcepsForceps

Forceps are used to pick up or hold small Forceps are used to pick up or hold small objects.objects.

FunnelFunnel

A funnel is A funnel is used to aid in used to aid in the transfer of the transfer of liquid from one liquid from one vessel to vessel to another.another.

Wash BottleWash Bottle

A wash bottle has a A wash bottle has a spout that delivers a spout that delivers a wash solution to a wash solution to a specific area. specific area. Distilled water is the Distilled water is the only liquid that only liquid that should be used in a should be used in a wash bottle.wash bottle.

SpatulasSpatulas

Spatulas are used to Spatulas are used to dispense solid dispense solid chemicals from their chemicals from their containers.containers. Chemicals should Chemicals should never be transferred never be transferred with your bare with your bare hands.hands.

Beaker TongsBeaker Tongs

Beaker tongs are Beaker tongs are used to move used to move beakers beakers containing hot containing hot liquidsliquids

Bunsen BurnerBunsen Burner

Bunsen burners are Bunsen burners are used for the heating used for the heating of nonvolatile liquids of nonvolatile liquids and solids.and solids.

Evaporating DishEvaporating Dish

The evaporating dish The evaporating dish is used for the is used for the removal of water from removal of water from nonvolatile solids or nonvolatile solids or solutions.solutions.

CrucibleCrucible

Crucibles are used Crucibles are used for heating certain for heating certain solids, particularly solids, particularly metals, to very high metals, to very high temperatures.temperatures.

Clay TriangleClay Triangle

The clay triangle is The clay triangle is used as a support for used as a support for porcelain crucibles porcelain crucibles when being heated when being heated over a Bunsen over a Bunsen burner.burner.

Crucible TongsCrucible Tongs

For handling hot For handling hot crucibles; also used to crucibles; also used to pick up other hot pick up other hot objects.objects. NOTNOT to be to be used for picking up used for picking up beakers! beakers!

Ringstands and their Ringstands and their ComponentsComponents

Ringstands are the Ringstands are the support base when support base when

heating something with a heating something with a Bunsen burner.Bunsen burner.

Ringstands and their Ringstands and their ComponentsComponentsIron RingsIron Rings

Iron rings connect to Iron rings connect to a ringstand and a ringstand and provide a stable, provide a stable,

elevated platform.elevated platform.

Ringstands and their Ringstands and their ComponentsComponentsWire GauzeWire Gauze

Wire gauze sits on the Wire gauze sits on the iron ring to provide a iron ring to provide a place to stand a beaker. place to stand a beaker.

Also used to place hot Also used to place hot glassware on the glassware on the counter top to cool.counter top to cool.

Ringstands and their Ringstands and their ComponentsComponentsBuret ClampsBuret Clamps

Buret clamps are Buret clamps are used to hold used to hold burets – long burets – long

graduated tubes graduated tubes used in titration.used in titration.

StrikersStrikers

Strikers are used to Strikers are used to light Bunsen burners.light Bunsen burners.