Erlenmeyer Flask USE Hold solids or liquids that

























































- Slides: 57
Erlenmeyer Flask
USE: • Hold solids or liquids that may release gas or splatter if stirred or heated
Beaker
USE: • Holds solids or liquids • Poor accuracy- only estimates volume
Hot Hands
USE: • Use to hold beakers when warm • Should not be used when liquid is boiling
Graduated Cylinder
USE: • Measure volumes of liquids • Best everyday measuring tool
Test Tubes
USE: • Mix chemicals • Heat chemicals- only use pyrex of kimax
Burette
USE: • Very accurately measures volumes of liquids • Dispenses small measurable amounts of liquids
Beaker Tongs
USE: • Move beakers with hot liquids • Do not use these in a flame
Bunsen Burners
USE: • Heating nonvolatile liquids or solids • Make sure hose is snug on gas outlet
Electronic Balance
USE: • Accurately determines the mass of a substance • Make sure balance is zeroed • Never place chemicals directly onto blanace pan
Crucible and Cover
USE: • Heat certain solids to very high temperatures • Covers used to contain any smoke particles
Crucible Tongs
USE: • Handling hot objects • Not use for picking up beakers
Evaporating Dish
USE: • Heating stable solid compounds • Evaporating nonvolatile solutions
Forceps
USE: • Hold or pick up small objects
Funnel
USE: • Aid in the transfer of liquids from one vessel to another • Holds filter paper
Pipette
USE: • Transfer small volume of liquid usually one drop at a time
Clay Triangle
USE: • Supports crucibles when being heated • Can also support a funnel
Well Plate
USE: • Perform many small scale reactions at one time
Ring Stand
USE: • Safe and convenient way to perform reactions requiring heating using a lab burner • Never put them in the cabinet if hot
Wire Gauze
USE: • Sits on iron ring to provide place to stand a beaker
Scoopulua
USE: • Transfer solid chemicals • Never insert directly into a reagent bottle
Stirring Rod
USE: • Manually stir solutions • Assists in pouring liquids
Flint/Striker
USE: • Used to light lab burners • Do not operate repeatedly (very expensive)
Test Tubes Tongs
USE: • Holding test tube that are too hot to handle
Wash Bottle
USE: • Rinse solids from other equipment when trying to conserve solid
Mortar & Pestle
USE: • Grind solids into fine powders • Thicker porcelain is heavy duty
Watch Glass
USE: • Hold small amount of solid • Used as a cover for dish or beaker
Weigh Boat
USE: • Weigh solids that will be transferred to another vessel • Never put chemicals directly on weigh plate
Hot Plate
USE: • Allows heating directly to substance • Can heat slowly to varying temperatures • Never place substance directly on the plate
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