Name: Khim Ahngelo S. Amad EBR102 – General Chemistry October 03, 2020 Instructor: Engr. Ronie Tarriga II MOST COMMON LABORATORY APPARATUS BURETS – Acid buret and base buret are for addition of a precise volume of liquid. The volume of liquid added can be determined to the nearest 0.01 ml with practice. PIPET – is used for measuring small volume of liquid direct from the reagent bottle. CONDENSER – is used in distillation to cool the hot vapors, condensing them into liquid for separate collection. THERMOMETER – is a device that measures temperature or temperature gradient using a variety of different principles. THISTLE TUBE – is used to add liquids or sometimes to other pieces of equipment. Name: Khim Ahngelo S. Amad EBR102 – General Chemistry October 03, 2020 Instructor: Engr. Ronie Tarriga II SEPARATORY FUNNEL – is used in liquid-liquid extractions to separate the components of a mixture between two immiscible solvent phases of different densities. WIRE GAUZE – is used for heating purposes, so that heat is not given directly to the apparatus being heated. FUME HOOD – is used to ventilate noxious or harmful gases. ALCOHOL LAMP – is used as a source of heat and light. BELL JAR – is a large glass jar with thick wall and used for covering and strong volatile chemicals. DISTILLING FLASK – is used as a container of the solution in the distillation process. Name: Khim Ahngelo S. Amad EBR102 – General Chemistry October 03, 2020 Instructor: Engr. Ronie Tarriga II GAS CYLINDER – is a pressure vessel used to store gases at above atmospheric pressure. SPECTROPHOTOMETER – is used to measure the absorbance or transmittance of a liquid sample. CRUCIBLE – is a vessel for heating or melting substances requiring extreme heat and temperature. PETRI DISH – is a shallow glass or plastic cylindrical lidded dish that biologist use to culture cells or small moss plants. GLASS FUNNEL – is a cone-shaped vessel ending in a tube at the base, used for pouring liquids or powders through a small opening, and to hold the filter paper in filtration. BEAKER – is a deep, wide mouthed, thin-walled, cylindrical vessel with a pouring lip used for measuring, stirring, mixing and heating liquids. Name: Khim Ahngelo S. Amad EBR102 – General Chemistry October 03, 2020 Instructor: Engr. Ronie Tarriga II VOLUMETRIC FLASK – is used for measuring large quantity of volatile liquid and used in analytical chemistry to produce accurate solutions. GALVANOMETER – is used to determine the presence, direction, and strength of an electric current in a conductor. ASPIRATOR – Is used for cleaning the pans of the different types of balances and used in getting liquid by means of a measuring pipets. DROPPER – is a tube for administering liquids by drops. measuring or CENTRIFUGE BOTTLE – is used as a container of solution to be centrifuged. CONNECTING TUBE – is used for connecting two or more containers with the use of rubber tubings. Name: Khim Ahngelo S. Amad EBR102 – General Chemistry October 03, 2020 Instructor: Engr. Ronie Tarriga II BURET CLAMP – is used to hold the burets in titration or to fasten glassware into place on a ring stand. DESICCATOR – Is used for preserving moisture sensitive items or used to protect chemicals which are hygroscopic. MULTI-NECKED FLASK – is used in more complex reactions that require the controlled mixing of multiple reagents. ERLENMEYER FLASK – is used for measuring large quantity of liquid; used as a receiver in titration and distillation; used as a container for liquid samples. FILTERING FLASK – is a special designed flask with a sidearm for conveying filtered liquid into other vessels. SPECIFIC GRAVITY BOTTLE – is a special type of bottle used to measure specific gravity of a material. Name: Khim Ahngelo S. Amad EBR102 – General Chemistry October 03, 2020 Instructor: Engr. Ronie Tarriga II Ph METER – is an electronic instrument measuring the Ph (acidity or alkalinity) of a liquid or sometimes of semi-solid substances. BALANCES – are used to determine the mass of a reagent or object. VIAL – is used as a container in storing small amount of solution or reagents. REAGENT BOTTLE – is a vessel used to contain chemicals use to bring about a chemical reaction with another substance for separating mixtures. SPATULA – is a various small implement with a broad, flat, flexible blade. WATCH GLASS – is a crystal used for observing small amount of samples undergoing reaction or as a cover for a beaker. Name: Khim Ahngelo S. Amad EBR102 – General Chemistry October 03, 2020 Instructor: Engr. Ronie Tarriga II EVAPORATING DISH – is a laboratory device for evaporation of solids and supernatant fluids, and sometimes to their melting point. MORTAR and PESTLE – is used for pounding and grinding solid substances into powder form. CLAY TRIANGLE – is placed on a ring attached to a ring stand as a support for a funnel, crucible, or evaporating dish. CORK BORER – is used for cutting a hole in a cork or rubber stopper to insert glass tubing. MAGNET – can experiment. be used to do magnetic SYRINGE – is used for measuring and transferring solvents and reagents where a high precision is not required. Name: Khim Ahngelo S. Amad EBR102 – General Chemistry October 03, 2020 Instructor: Engr. Ronie Tarriga II FILTERING JAR – is a jar equipped with a sidearm for transferring into other vessels. RETORT – is a vessel in the shape of a bulb with a long, downward-pointing outlet tube. It is used for distillation or decomposition by heat. FLORENCE FLASK (Round-bottom Flask) – is designed for uniform heating and ease of swirling. It need support to stand upright. FLORENCE FLASK (Flat-bottom Flask) – is used to keep a liquid or solid on the flat surfaces for studying purpose. WASH BOTTLE – is used for washing the inner sides of the apparatus like tube or flask where the chemicals that undergo reaction are placed. GRADUATED CYLINDER – is a piece of laboratory glassware used to accurately measure the volume of liquid. It is also known as a measuring cylinder. Name: Khim Ahngelo S. Amad EBR102 – General Chemistry October 03, 2020 Instructor: Engr. Ronie Tarriga II U-TUBE – is a glass tube shaped in the formed “U” which can be used as a manometer – used in measuring the pressure of liquids. DRYING TUBES – is used for hydration of calcium chloride and can serve as a funnel. EXTRACTION TUBE – is used to extract a substance from the mixture or solution TEST TUBE – is a glass tube closed at one end used in making chemical tests; used for heating small amount of solution in experiments. TRIPOD – is a stand or support with three legs that is often used to place above the Bunsen burner in the science lab to heat/boil anything. Name: Khim Ahngelo S. Amad EBR102 – General Chemistry October 03, 2020 Instructor: Engr. Ronie Tarriga II BUNSEN BURNER – is a laboratory equipment that produces a single open gas flame, which is used for heating, sterilization, and combustion. RING STAND WITH RINGS – are used for holding pieces of glassware in place. TEST TUBE RACK – is a framework of wooden or metal bars used for supporting the test tubes LABORATORY JACK – is made mostly of steel; it is quite sturdy and can support 50lbs. under normal use. It allows for coarse adjustment of height only HOT PLATE – can also be used as sources of heat when an open flame is not desirable. CENTRIFUGE – is used to separate contained materials of different specific gravities, or to separate colloidal particles suspend in a liquid. Name: Khim Ahngelo S. Amad EBR102 – General Chemistry October 03, 2020 Instructor: Engr. Ronie Tarriga II DEFLAGRATING SPOON – is used for holding, mixing, or stirring hot liquid while in the process of deflagration. SCALPEL – is a small and extremely sharp bladed instrument used for surgery and anatomical dissection. MICROMETER – is a device incorporating calibrated screw used for precise measurement of small distances. TEST TUBE BRUSH – is a device, made with nylon bristles attached to a twisted-wire shaft, used to knock the bottoms out of test tubes. TEST TUBE HOLDER – is a metal wire used to hold or support test tubes containing chemicals waiting for further operations TONG – is used in holding hot materials or apparatus Name: Khim Ahngelo S. Amad EBR102 – General Chemistry October 03, 2020 Instructor: Engr. Ronie Tarriga II MICROSCOPE – is an optical instrument that uses a lense to produce magnified images of objects too small to be seen by the unaided eye.