Date post: | 25-Dec-2015 |
Category: |
Documents |
Upload: | penelope-sullivan |
View: | 221 times |
Download: | 1 times |
Lab Equipment
Beaker
Normally made of glass. A cup like device used mainly
for heating up a liquid.
Beakers hold solids or Beakers hold solids or liquids that will not release liquids that will not release gases when reacted or are gases when reacted or are
unlikely to splatter if stirred unlikely to splatter if stirred or heated.or heated.
Erlenmeyer Flask
The narrow neck makes it easy to mix substances
without spilling.
A cup like device that is pyramidal shaped.
Erlenmeyer flasks hold Erlenmeyer flasks hold solids or liquids that may solids or liquids that may
release gases during a release gases during a reaction or that are likely to reaction or that are likely to splatter if stirred or heated.splatter if stirred or heated.
Florence FlaskRarely used in first Rarely used in first year chemistry, it year chemistry, it
is used for the is used for the mixing of mixing of
chemicals. Narrow chemicals. Narrow neck prevents neck prevents
splash exposure.splash exposure.
A florence flask is a volumetric flask.
Volumetric
A volumetric device is calibrated to measure a
specific amount. Usually only one mark is on it to indicate when you have reached that amount.
A device that usually has no marking that is
good for any kind of storage. Also known as a gas collecting bottle.
Wide Mouthed Bottle
We use gas collecting We use gas collecting bottles when large volumes bottles when large volumes of gases are produced, and of gases are produced, and
must be collected by the must be collected by the displacement of water.displacement of water.
Separatory Funnel
Used to separate polar compounds that have separated into layers.
Wash Bottle
A bottle which should contain distilled water for use and cleaning.
Thermometer
A device used to measure the amount of heat
Stirring Rodis used to manually stir is used to manually stir
solutions. It can also be used solutions. It can also be used to transfer a single drop of a to transfer a single drop of a
solution.solution.
Cleaning Brush
designed for cleaning the inside of glassware. There are different sizes for each type of
glassware.
Forceps are used to pick up small are used to pick up small
objects.objects.
Test Tube Tongs
is useful for holding a test tube is useful for holding a test tube which is too hot to handle.which is too hot to handle.
Striker
are used to light Bunsen burners. The are used to light Bunsen burners. The flints on strikers are expensive. Do not flints on strikers are expensive. Do not
operate the striker repeatedly just to see operate the striker repeatedly just to see the sparks!the sparks!
Crucible Tongs
For handling hot For handling hot crucibles; also crucibles; also used to pick up used to pick up
other hot objects. other hot objects. NOTNOT to be used for to be used for
picking up picking up beakers!beakers!
Extension ClampUsed on a stand or pole, it
clamps something further out or used when more clamps
are needed.
Buret Clamp
Also known as test tube clamps or Also known as test tube clamps or utility clamps. Utility clamps are utility clamps. Utility clamps are
used to secure test tubes, used to secure test tubes, distillation columns, and burets to distillation columns, and burets to
the ringstand.the ringstand.
Clamp Holder Used to hold the
extension clamp.
Dropping Pipet
is used to transfer a small is used to transfer a small volume of liquid (usually less volume of liquid (usually less
than one mL).than one mL).
Bunsen Burner
are used for the are used for the heating of heating of nonvolatile nonvolatile liquids and liquids and
solids. Is fueled solids. Is fueled by some type of by some type of
gas.gas.
Watch Glass
is used to hold a small amount is used to hold a small amount of solid, such as the product of of solid, such as the product of
a reaction.a reaction.
Wire Gauze
sits on the iron sits on the iron ring to provide ring to provide
a place to a place to stand a beaker.stand a beaker.
Crucible
are used for are used for heating certain heating certain
solids, solids, particularly particularly
metals, to very metals, to very high high
temperatures.temperatures.
Triangle
is used as a is used as a support for support for porcelain porcelain
crucibles when crucibles when being heated being heated
over a Bunsen over a Bunsen burner.burner.
Mortar and
Pestle
Used to grind stuff into a fine powder.
Evaporating Dish
is used for the is used for the heating of stable heating of stable solid compounds solid compounds
and elements. and elements. Also used to Also used to
separate a solid separate a solid suspended in a suspended in a liquid by boiling liquid by boiling away the liquid.away the liquid.
Graduated Cylinder
is used to measure volumes of is used to measure volumes of liquids.liquids.
Volumetric Flask
A flask which holds a specific
amount of liquid. Is used to mix ppm and ppb solutions.
Graduated Pipet
measures and measures and delivers exact delivers exact
volumes of volumes of liquids.liquids.
Volumetric Pipet
A pipet which will measure a
specific amount of
liquid.
Buret A long graduated tube used to hold liquid and release
the liquid with extreme control.
Most often used in neutralizing a base.
CondenserA device used to condense a
gas into a liquid by surrounding the gas with a
cool liquid.
Running water is most often used.
StandUsed as a Used as a safe and safe and
convenient convenient way to way to
perform perform reactions reactions
that that require require heating heating using a using a Bunsen Bunsen burner.burner.
Rings
connect to a stand and provide a stable, connect to a stand and provide a stable, elevated platform for the reaction.elevated platform for the reaction.
Funnel is used to aid in the transfer of liquid is used to aid in the transfer of liquid
from one vessel to another.from one vessel to another.
Test Tubes
Tubular devices used for mixing, and/or
heating stuff together.
Test Tube Rackare for holding and organizing test tubes are for holding and organizing test tubes on the laboratory counter. Plastic racks on the laboratory counter. Plastic racks may melt in contact with very hot test may melt in contact with very hot test
tubes.tubes.
Rubber Stoppers
are used to close containers to avoid are used to close containers to avoid spillage or contamination.Containers spillage or contamination.Containers
should never be heated when there is a should never be heated when there is a stopper in place.stopper in place.
Spot Plates are used when are used when
we want to we want to perform many perform many
small scale small scale reactions at reactions at
one time.one time.
Litmus Paper
RedRed litmus paper is litmus paper is used to identify bases.used to identify bases.
BlueBlue litmus paper is litmus paper is used to identify acids.used to identify acids.
Weighing Boat are used to are used to
weigh weigh solids that solids that
will be will be transferred transferred to another to another
vesselvessel..
Spatulas
are used to are used to dispense solid dispense solid chemicals from chemicals from their containers. their containers.
Chemicals Chemicals should never be should never be transferred with transferred with
your bare your bare hands.hands.
Beaker Tongs
are used to move are used to move beakers containing beakers containing
hot liquidshot liquids
Triangular File
are used primarily to are used primarily to cut glass rodcut glass rod
Double Buret ClampsDesigned to hold two burets to
make titration easier.
Pressed Fiber Pad
A 4” x 4” square of ceramic A 4” x 4” square of ceramic fiber, it provides a surface for fiber, it provides a surface for hot beakers so that the beaker hot beakers so that the beaker
does not come in contact with a does not come in contact with a cold countertop and shatter.cold countertop and shatter.
Capillary Action
is the ability of a narrow tube to draw a liquid upwards against the
force of gravity.
Meniscus
is a curve in the surface of a liquid,
produced in response to the surface of the container or another
object. It can be either concave or convex.