Lab Equip Flashcards
used for obtaining mass of an object and chemical substance.
Triple Beam Balance
is the most common type in which the balance pan is placed over an electromagnet. The sample is placed on the sample pan displacing pan downward by a force equal to the product of the sample’s mass and the acceleration due to gravity.
Analytical Electronic Balance
are used for holding liquids and water. The glassware is also used for mixing solutions and heating the liquids.
Beakers
are small cylindrical vessels for holding small amount of liquids for mixing and heating.
Test tubes
is a narrow-mouthed container used to transport heat, or store substance.
Erlenmeyer Flask
can be used for measuring approximate amount of liquids.
Graduated cylinder
is a flask calibrated to contain a precise volume at a particular temperature. Used for precise dilution and creating standard solutions.
Volumetric flask
is a flask with a round body and flat bottom. It is used to hold and heat liquids evenly.
Florence Flask
is used to deliver a specified volume of solution.
Pipet
A type of pipette used to deliver variable volumes of liquids.
Graduated (measuring) pipettes
A type of pipette used for transferring very precise volume of solutions
Volumetric pipettes (Transfer pipet)
are used for measuring specific amounts of liquids during titration. Often for determining amounts of acids and bases needed.
Burettes
The most common type, has an inner tube through which vapor flows, surrounded by a “jacket” through which cool water passes and condenses the vapor.
Leibig condenser
is used to pour liquids into containers with small openings; also used to hold filter paper.
Filter Funnel
can be used in conjunction with the Buchner funnel in vacuum filtration and is a much quicker process than the gravity filtration.
Buchner flask
is used for separating solutions or liquids of different densities.
Separatory funnel
is used to evaporate excess solvents to create more concentrated solution.
Evaporating dish
is used to grind chemicals or substance into powder form.
Mortar and Pestle
is used for keeping the contents in a beaker from splattering.
Watch glass
is used to wash down specific pieces of equipment with water or keep materials moist.
Wash bottle
are used to measure and dispense very small amount of liquids.
Micropipets
is used to measure and obtain small amounts of liquids (not precise).
Dropper (Pasteur Pipet)
is to support the Bunsen burner, iron ring, pipestem triangle, and other items, often while heating a substance.
Ring stand
supports the crucible when being heated over an open flame.
Pipesteam triangle
is for heating chemical mixtures or contents in the lab.
Bunsen burner
supports a beaker over a Bunsen burner.
Iron ring
is used to hold a test tube or other
piece of equipment in place on a ring stand.
Utility clamp
is used for suspending glassware over the Bunsen burner.
Wire gauze
is for transporting a hot beaker and removing lids from crucible.
Tongs
are used in dissection to grasp tissues or pick up small items.
Forceps
is used to grind down materials or sharpen items.
File
is used to clean the inside of test tubes or graduate cylinders.
Wire brush
is for holding many test tubes filled with chemicals (or for drying after washing).
Test tube rack
is for heating contents in a tube.
Test tube clamp
is for measuring and/or removing small amounts of solids or powders when obtaining mass.
Spatula
are used to seal or stop flasks and tubes.
Corks
is used to measure temperature.
Thermometer
is used for consistent heat, used to heat
substances that may be flammable.
Hot plate
are for mixing very small amounts of chemicals together and comparing results.
Well plates
