Lab Equipment Flashcards
(34 cards)
Beaker
Beakers hold solids or liquids that will not release gases when reacted or are unlikely to splatter if stirred or heated.
Erlenmeyer Flask
Erlenmeyer flasks hold solids or liquids that may release gases during a reaction or that are likely to splatter if stirred or heated.
Graduated Cylinder
A graduated cylinder is used to measure volumes of liquids.
Test Tubes
Ignition tube, 13 x 100 mm test tubes, 10 x 75 mm test tubes
Test Tube Holder
A test tube holder is useful for holding a test tube which is too hot to handle.
Test Tube Brushes
Test tube brushes are used to clean test tubes and graduated cylinders.
Test Tube Racks
Test tube racks are for holding and organizing test tubes on the laboratory counter. Plastic racks may melt in contact with very hot test tubes.
Spot Plates
Spot plates are used when we want to perform many small scale reactions at one time. We will use these many times during the year.
Watch Glass
A watch glass is used to hold a small amount of solid, such as the product of a reaction. It is also used to prevent splattering when evaporating liquids.
Glass Stir Rod
A glass rod is used to manually stir solutions. It can also be used to transfer a single drop of a solution. (The rubber policeman is used to scrape solids from glassware.)
Litmus Paper
Red litmus paper is used to identify bases.
Blue litmus paper is used to identify acids.
Forceps
Forceps (or tweezers) are used to pick up small objects.
Funnel
A funnel is used to aid in the transfer of liquid from one vessel to another. (It is also used in gravity filtration.)
Wash Bottle
A wash bottle has a spout that delivers a wash solution to a specific area. Distilled water is the only liquid that should be used in a wash bottle.
Weighing Boat
Weighing boats are used to weigh solids that will be transferred to another vessel. A piece of paper
may also be used but not a paper towel or any other type of paper that is absorbent.
Spatulas
Spatulas are used to dispense solid chemicals from their containers.
Beaker Tongs
Beaker tongs are used to move beakers containing hot liquids
Bunsen Burner
Bunsen burners are used for the heating of nonvolatile liquids and solids.
Evaporating Dish
The evaporating dish is used for the heating of stable solid compounds and elements.
It is also used to evaporate a liquid from a solid.
Crucible
Crucibles are used for heating certain solids, particularly metals, to very high temperatures.
Clay Triangle
The clay triangle is used as a support for porcelein crucibles when being heated over a Bunsen burner.
Crucible Tongs
For handling hot crucibles; also used to pick up other hot objects. NOT to be used for picking up beakers!
Ringstands and their Components
Ringstands are a safe and convenient way to perform reactions that require heating using a Bunsen burner.
Iron Rings
Iron rings connect to a ringstand and provide a stable, elevated platform for the reaction.
