lab equipment
DESCRIPTION
Lab Equipment . *These are the pieces of equipment you may see in class. You will be expected to know the names of the items and the actual use for each*. Beaker. Holds and measures approximately large volumes of liquid. Also used as a water bath for heating test tubes. - PowerPoint PPT PresentationTRANSCRIPT
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Lab Equipment
*These are the pieces of equipment you may see in class. You will be expected to know the names of
the items and the actual use for each*
![Page 2: Lab Equipment](https://reader035.vdocuments.site/reader035/viewer/2022062814/568167e7550346895ddd5398/html5/thumbnails/2.jpg)
Beaker
• Holds and measures approximately large volumes of liquid.
• Also used as a water bath for heating test tubes.
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Conical Flask / Rubber Stopper
• A narrow-mouthed container used to transport, heat or store substances, often used when a stopper is required.
• Also known as an Erlenmeyer Flask.
• Stopper closes off flask like in a bath tub.
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Burette
• A vertical cylindrical piece of laboratory glassware with a volumetric graduation on its full length and a precision tap, or stopcock with plug and bore, on the bottom.
• It is used to dispense known amounts of a liquid reagent in experiments for which such precision is necessary, such as a titration experiment.
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Bunsen Burner
• Produces a flame to heat using gas and air.
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Graduated Cylinder
• Graduated tube with a spout that is used especially for measuring small amounts of liquid with precision.
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Hot Plate
• Produces heat like a stove's burner.
• Used in most experiments when open flames can be an issue.
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Glass Stirring Rod
• Used to stir or mix solutions that are either hot or cold.
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Tongs
• Used to pick up glassware that may be hot including beakers, crucibles and flasks.
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Lab Stand / Ring Stand Test Tube Holder/ Wire Gauze
• Stand that allows clamps to be attached for various experiments.
• Ring clamps attach to a lab stand and are used to hold a variety of lab equipment many times with the wire gauze across it.
• Test tube holders allow you to clamp test tubes to the stand for heating.
• Other clamps will hold things like conical flasks and burettes for experiments.
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Triple Beam Balance / Scale
• Used to measure the mass of an object usually in grams or kilograms depending on the chemical.
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Funnel
• Used to pour liquids or solids into another piece of lab equipment.
• May be made out of glass or plastic and usually have long spouts.
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Test Tube / Holder / Rack / Brush
• A small glass container used to view chemical reactions or to heat small amounts of a substance .
• The rack and holder are each to hold the test tube if they may be hot or you need to set them down.
• The brush is only for test tubes and small graduated cylinders to clean them.
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Crucible / Evaporating Dish
• Crucible - A ceramic or metal container in which metals or other substances may be melted or subjected to very high temperatures.
• Evaporating Dish - A small shallow dish used in laboratories to heat and evaporate substances.
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Eye Dropper
• Used to add small amounts of a liquid to an experiment or to remove liquid that has a solid settled underneath it.
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Striker / Lighter
• Used to create a spark to start a Bunsen burner.
• If constantly sparked they will no longer work as the flint wears down.
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Watch Glass
• A shallow glass dish used as an evaporating surface or to cover a beaker.
• Easily breakable!
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Spatula
• Used to remove a portion of a solid from a chemical bottle or a test tube.
• Should only be used in one chemical and then thoroughly washed.
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Wash Bottle
• The wash bottle contains deionized water and is used to rinse glassware, among other things.
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Litmus Paper
• Indicates whether a solution is acidic or basic.
• Usually found as red or blue.