Lab Equipment Flashcard

provides partial protection against chemical spills, are only resistant to chemical action, undertoe procedure for removing

operate with station valve fully open and gas intake closed as much as possible. Burner vavle should be open until a fluttering sound is present and no glow from the grid at the top.

The Amount of heat applied to an object or container is Not Controlled With The Valve. The Intensity of heating is controlled by the distance of the object and the rapid movement of the object or burner.

principle support apparatis for heating a variety of objects. Greatest hazards are poor assembly and not giving adequet time to cool

highest temperature container, can be exposed directly to the flame, Cover is used to keep oxygen out, not keep chemicals in

used to support the crucible and can also be used as a support for the funnel

uses to move crucible and crucible cover when very hot. two-handed technicle for removole

used for heating. Since solids require prolonged heating they normally are supported with utility clamp Near The Rim.

used for mixing chemicals and observation. Very dangerous to heat except in hot water bath

must be used with beaker, flourince, erlenmeye, and dished when heating

all purpose poring, holding, and holding container for liquids. The graduations Do Not give Accurate Volume measurments.

used to evaporate water from solutions and recover solids that are not ususally sensitive to heat. Weigh before experiment.

normally used as aboiling flask and used when it is desiralbe to control or direct the vapors in the boiling process. Usually used for distillation or with liquids with hazardous vapors.

usually used to mix substances or to form solutions. used in the titration process for mixing. Used as a substutue for flor. flask and graduations Are Approximate.

used to measure volume of liquids, must be taken at eye level from the bottom of the meniscus, plastic ring is kept near the top. Do Not mix in this or use the small cylinder to Dispence an accurate volume.

Not For Stiring. use to transfer a drop for "testing" and as an aid for pouring from a reagent bottle to a beaker.

test chemicals and their pH balance

used for filtering. Mass filter paper before the experiment.

used for transfering solids. can be a large source of contamination. Never used to obtain stock chemicals.

used to help transfer solids form flask to beakers (usually for filtration)

used to dispense one or more drops of chemical. A major source of contamination error in procedure.

solid stoppers seal test tubes or flask. One-hole stoppers are connected to glass and rubber tubing usually to direct gases to a different place.

used to store and transport chemicals from bulk supplies.

used to grind not pound chemicals into a fine powder for rapid reaction or dissolving. Do Not heat or steal.

gives Accurate mass measurements