Laboratory Equipment and Skills: Recognizing Lab Equipment In the chemistry laboratory, you will be using equipment, handling materials, and performing certain unfamiliar tasks. The purpose of this section is to introduce you to the equipment and to describe some of their uses that you will need to be familiar with in this laboratory course. There will be a quiz given online that will be based on prior knowledge and this reference sheet. DESCRIPTION EQUIPMENT vertical metal rod heavy base USE support for rings, clamps or other lab equipment DESCRIPTION glass has specified volume etched line Support device for beakers, flasks, or other lab equipment container less evaporation than beaker can be heated ERLENMEYER FLASK container may be used like cup can be heated glass rounded sides indicated volume BEAKER vertical glass hollow cylinder Increment markings Preparation of solutions Precision volume measurements glass top is smaller than base indicated volume IRON RING open mouth container straight sides specific volumes are marked on container USE VOLUMETRIC FLASK RING STAND iron ring screw fastener variety of diameters EQUIPMENT container can be heated FLORENCE FLASK makes precision volume measurements metal clamp flexible clips holds 2 holds burets when conducting volumetric experiments BURET CLAMP GRADUATED CYLINDER pouring liquids into buret or flask holding filter paper glass or plastic FUNNEL metal clamp screw fastener holds test tubes or other equipment plastic or ceramic many small bowls WELL PLATE wire screen has ceramic disk to dissipate heat TEST TUBE CLAMP TEST TUBE wire grid or made of plastic/wood Holds test tubes in upright position triangular wire frame with clay insulators allows for test tubes to be transferred or moved without touchTEST TUBE HOLDER ing with hands supports items being heated on ring stand CLAY TRIANGLE holds small amounts of liquids. can be heated ceramic dish TEST TUBE RACK thick metal wire spring handle spread heat of flame cooling heated container WIRE GAUZE container glass versions can be heated glass or plastic variety of diameters holds liquids in micro experiments EVAPORATING DISH metal pick up and hold beakers TONGS DESCRIPTION EQUIPMENT metal and ceramic highly delicate USE DESCRIPTION most accurate method to determine mass requires experience to use squeezable plastic bottle with angular tip TRIPLE BEAM BALANCE holds water, plastic gas collection bottles, at least a foot deep and gas collection tubes EQUIPMENT dispenses distilled water WASH BOTTLE pick up or hold small objects metal tweezers PNEUMATIC TROUGH designed to pour liquids into burets glass funnel shape FORCEPS curved glass BURET FUNNEL metal file used to etch glass used for filing TRIANGLE FILE seals flasks and bottles rubber STOPPERS allows small samples to be heated to extreme temperatures porcelain jar with lid CRUCIBILE AND LID brush with wire handle used for cleaning lab equipment WATCH GLASS metal clamp with finger grips to stir liquids without transfer of heat glass rod GLASS STIRRING ROD made of metal or porcelain clamps together rubber hoses PINCH CLAMP glass tip with rubber bulb transfer small amounts of liquid DROPPER metal heating device connected to gas outlet without gas control valve Produces medium heat flame, the standard lab burner metal heating device connected to gas outlet with gas control valve used in pouring liquids transfer solid chemicals for weighing produces very highheat flame much hotter than BUNSEN BURNER TIRRILL BURNER metal gas vent burner with broad flame catcher SPATULA used to collect and measure volumes of gas from experiments can cover beakers used in evaporating small amounts of liquid BUNSEN BURNER TEST TUBE BRUSH glass marked with inverted mL scale USE GAS COLLECTION TUBE THEROMETER glass with alcohol or mercury inside MEKER BURNER plastic coating heavy porcelain dish with grinder measures temperature of gas or liquid samples used to grind solid chemicals MORTAR to a powder AND PESTLE BURET produces very large high heat flame bigger flame than TIRRIL BUNER hotter flame than BUNSEN BURNER glass marked with inverted mL scale has stopcock to control flow used for precision volume measurements