Erlenmeyer Flask USE Hold solids or liquids that Slides: 57 Download presentation 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 • https: //www. slideshare. net/Cheryl. Bausman/14 laboratory-equipment