Joshua Joachim M. Pagaduan HUB 21 Chemistry Assignment
Laboratory Equipment and apparatus
Function 1. A beaker is a simple container for stirring, mixing and heating liquids commonly used in many laboratories. Beakers are generally cylindrical in shape, with a flat bottom.
2. Erlenmeyer flask, also known as a conical flask, is a widely used type of laboratory flask which features a flat bottom, a conical body, and a cylindrical neck. Erlenmeyers are used in chemistry labs for titration, e.g. for pH, as they can be held and the contents mixed singlehanded leaving the other hand free to add reagent. Erlenmeyer flasks are extremely useful in the lab setting for stirring the contents by hand by swirling the flask, as the tapered neck prevents spillage of the contents.
3. Aspirator - used for moving air,fluids, etc. by suction.
4. Test Tube Brush is a brush to clean test tubes. It is a device, made with nylon bristles attached to a twisted-wire shaft, used to knock the bottoms out of test tubes.
5. A test tube rack is used in a laboratory and it is used to hold/support test tubes containing chemicals waiting for further operations.
Laboratory Equipment and apparatus
Function
6. Wing Top/Fish Tail - used to bend glass as it spread out the heat over a larger area, making it more uniform.
7. A porcelain spatula is used in laboratory applications where scratching delicate surfaces is undesired as well as scooping up small quantities of powder. It is made of porcelain which ensures high heat, even surface and high heat resistance.
8. A Medicine Dropper is an instrument used for transferring liquids in small amounts.
9. A stirring rod or stir rod is a piece of laboratory equipment used to mix chemicals and liquids for laboratory purposes.
10. A funnel is a pipe with a wide mouth, good for feeding, often conical mouth and a narrow stem. It is used to channel liquid or fine-grained substances into containers with a small opening. Without a funnel, spillage would occur.
11. Wire Gauze is used to support a container during heating. The wire gauze helps to spread the flame out evenly. It is also used to filter liquids and solids.
Laboratory Equipment and apparatus
Function
12. A spatula is used to take and handle small quantities of solid chemicals. . It serves as spoon. You can also use them to scrape away samples of biological materials, or chemical precipitates and residues. 13. Test tube holder - To hold test tube while heating
14. The clay triangle is used to hold a crucible while the crucible is heated. This allows direct contact of the open flame to the crucible, which usually contains a substance that melts at fairly high temperatures.
15. A Pipette is a narrow, usually calibrated glass tube into which small amounts of liquid are suctioned for transfer or measurement.
16. A Buret clamp is used to fasten glassware into place on a ring stand.
17. An evaporating dish is a piece of laboratory glassware used for the evaporation of solids and supernatant fluids, and sometimes to their melting point
18. Spot Plate - A ceramic plate with small wells or depressions built into it, often used for qualitative analysis. The wells (or spots) are used to perform reactions on a very small amount of materials. These were extensively used in the past for chemical reactions to determine mineral or drug content
Laboratory Equipment and apparatus
Function 19. A deflagrating spoon is an apparatus that is used to heat small amounts of substances to a high temperature.
20.A Florence flask (also known as a boiling flask) is a type of flask used as an item of Laboratory glassware. It is used as a container to hold liquids.
21. A wash bottle is a squeeze bottle with a nozzle, used to rinse various pieces of laboratory glassware such as test tubes and round bottom flasks.
22. Tripod- is a three-legged equipment, generally used as a platform of some sort. This lab equipment is used to support and hold various flasks, beakers and other glass ware when not in use and also during experiments. 23. Alcohol lamp are usually found in biology labs where they do inoculations of bacteria cultures.
24. Laboratory thermometer is a device that measures temperature or temperature gradient using a variety of different principles.
Laboratory Equipment and apparatus
Function
25. Mortar and Pestle is a tool used to crush, grind, And mix solid substances.
26. An iron ring is the one that holds glassware such as a funnels or other objects, like the wire gauze or clay triangle for heating with a Bunsen burner. Often, the iron ring will be attached to an iron stand.
27. A triple beam balance is a type of balance commonly used in the laboratory to determine the mass (by weight comparison) of samples.
is
28. A Bunsen burner, named after Robert Bunsen, a common piece of laboratory equipment that produces a single open gas flame, which is used for heating, sterilization, and combustion.
29. A watch glass is a circular, slightly convexconcave piece of glass used in chemistry as a surface to evaporate a liquid, to hold solids while being weighed, or as a cover for a beaker. The latter use is generally applied to prevent dust or other particles entering the beaker.
30. An ignition tube is primarily used to hold small quantities of substances which are undergoing direct heating by a Bunsen burner or other heat source.
Laboratory Equipment and apparatus
Function 31. Crucible tongs are pincers usually made of steel. They are used to take crucibles out of fire. They are Also used to move crucibles from a furnace to another location.
32. Test tubes are widely used by chemists to hold, mix, or heat small quantities of solid or liquid chemicals, especially for qualitative experiments and assays.
33. A crucible is used to hold small amounts of chemicals during heating at high temperatures. The lid covers the bowl so nothing escapes, or to keep oxygen out of the reaction.
34. acid/base burettes is used to determine the concentration of either the acid or base from the known concentration of the other solution.
Online References: 1. http://en.wikipedia.org/wiki/Beaker_%28glassware%29 2. http://en.wikipedia.org/wiki/Erlenmeyer_flask 3. http://www.scribd.com/doc/57465131/Laboratory-Apparatus http://www.novakistan.com/gotta-snotsucker/childs-nasal-aspirator-isolated-on-a-whiteBackground/* 4. http://www.scientificsonline.com/test-tube-brush.html* http://wiki.answers.com/Q/What_a_test_tube_brush_and_how_is_it_used http://www.reference.com/motif/consumer_electronics/test-tube-brush 5. http://wiki.answers.com/Q/What_is_a_test_tube_holder_or_rack_and_what_are_its_uses http://leisureguy.wordpress.com/2007/03/02/* 6. http://www.labscientificequipments.com/educational-414-47-15.html 7. http://www.ask.com/question/what-is-a-porcelain-spatula-used-for http://www.cardinal.com/us/en/distributedproducts/ASP/S1555-2.asp?cat=laboratory 8. http://www.dimensionsinfo.com/dropper-dimensions/ 9. https://en.wikipedia.org/wiki/Stirring_rod 10. http://en.wikipedia.org/wiki/Funnel 11. www.reference.com/motif/business/use-of-wire-gauze http://spellboundlabs.co.za/index.php?main_page=product_info&cPath=72&products_id=177 12. http://www.cuisine-french.com/cgi/mdc/l/en/boutique/produits/degspatule_metallique_25.html http://wiki.answers.com/Q/What_is_a_spatula_and_how_is_it_used_in_the_laboratory 13. http://khairiyah-educationalblogging.blogspot.com/p/12-your-science-laboratory.html 14. http://www.ebay.com/itm/PIPE-STEM-CLAY-TRIANGLE-1-1-2-/330326659534 15. http://www.thefreedictionary.com/pipette http://www.andonbrush.com/PlasticPipettes.html 16. http://www.made-in-china.com/showroom/yongjing-cn/product-detailCLJnrgEPzQfu/ChinaBuretClamp-Thermometer-Clamp.html http://wiki.answers.com/Q/What_is_a_burette_clamp_and_how_is_it_used 17. http://en.wikipedia.org/wiki/Evaporating_dish 18. http://basicsciencesupplies.com/spot-plate-porcelain-student-12-cavities-115-x-90mm.html http://answers.yahoo.com/question/index?qid=20070618053643AA9Mj1G 19. http://www.acumenlabware.com/gas-preparation/deflagrating-spoon.html http://www.ask.com/question/what-is-a-deflagration-spoon-used-for 20. http://en.wikipedia.org/wiki/Florence_flask 21. http://en.wikipedia.org/wiki/Wash_bottle 22. http://www.perfectpartscompany.com/PerfectApparatusMainFrame.htm http://www.slideshare.net/alyssadenise/laboratory-apparatus 23. http://www.slideshare.net/alyssadenise/laboratory-apparatus http://www.perfectpartscompany.com/PerfectApparatusMainFrame.htm 24. http://schools.ednet.ns.ca/avrsb/024/pwarren/Index/science7a.htm http://www.slideshare.net/alyssadenise/laboratory-apparatus
25. http://en.wikipedia.org/wiki/Mortar_and_pestle http://www.slideshare.net/alyssadenise/laboratory-apparatus 26. http://en.wikipedia.org/wiki/Iron_Ring http://www.slideshare.net/alyssadenise/laboratory-apparatus 27. http://wiki.answers.com/Q/What_is_a_triple_beam_balance_and_how_is_it_used http://www.physics.smu.edu/~scalise/apparatus/triplebeam/ 28. http://en.wikipedia.org/wiki/Bunsen_burner 29. http://en.wikipedia.org/wiki/Watch_glass 30. http://en.wikipedia.org/wiki/Ignition_tube 31. http://www.ask.com/question/what-is-a-crucible-tongs 32. http://www.slideshare.net/alyssadenise/laboratory-apparatus http://shschem.pbworks.com/w/page/10888412/4th%20intro%20to%20lab%20carson,%20chris,%20 and%20bryce 33. http://wiki.answers.com/Q/What_is_a_crucible_and_how_is_it_used_in_a_laboratory http://www.thesciencefair.com/Merchant2/merchant.mvc?Screen=PROD&Product_Code=37675&Category_Code= 34. http://wiki.answers.com/Q/What_is_the_use_of_acid_and_base_burette http://en.wikibooks.org/wiki/Chemical_Principles/Conservation_of_Mass_and_Energy
