Data Bases • Custom Term Papers • Free Term Papers • Free Research Papers • Free Essays • Free Book Reports • Plagiarism? Links • Top 100 Term Paper Sites • Top 25 Essay Sites • Top 50 Essay Sites • Search 97,000 Papers @ DirectEssays.com • Search 101,000 Papers @ ExampleEssays.com • Search 90,000 Papers @ MegaEssays.com Free Essays • Term Paper Sites • Chuck III's Free Essays • Free College Essays • TermPaperSites.com • My Term Papers • Get Free Essays • Essay World • Planet Papers	Search Lots of Essays Back to Subjects - Miscellaneous Introductory Lab Introductory Lab 1. To learn proper safety techniques with laboratory equipment. 2. To learn the names and functions of all items in the lab. 3. To learn to use all lab materials safely and effectively. Part 1-The Burner - Familiarize yourself with the gas burner. Recognize all parts and learn how to operate them properly. Learn how to safely light the gas burner, and control the flame. Clean up the lab station when finished. Part 2- Glass Manipulations - Educate yourself on how to properly insert glass tubing into rubber stoppers. Also note the proper safety precautions that are necessary to do so. Lastly, learn how to safely insert glass tubing into a plastic hose. Clean lab station. Part 3- Handling Solids- Note how to properly retrieve solid chemicals out of their container. Learn all safety precautions that should be taken when handling solid chemicals. Teach yourself how to transfer solid chemicals safely. Clean lab station. Part 4- The Balance - Make sure the balance is set up properly before you turn it on. Learn how to read, tare, and measure things on the balance. Note any safety precautions that should be taken. Learn how to properly operate the electronic balance safely and efficiently.Clean lab station. Part 5- Measuring Liquids - Educate yourself on how to properly measure liquids and on the different apparatus used to do such. Learn how to properly set up a buret stand and how to read the meniscus of a liquid. Please note all safety precautions that should be followed when measuring liquids. Clean the lab station. Part 6- Filtration - Educate yourself on the process of decantation. Properly set up the funnel so that it will filter the salt water through the sand. Properly filter 50 mL of salt water though about 2g of sand. Evaporate the newly formed solution. Also note any and all safety precautions that should be followed when preforming this lab. Clean the lab station. Part 7- Measuring Temperature and Heat - Observe the mercury thermometer. Educate yourself on the calorimeter and then assemble one. Record the temperature of 50 mL of water. Heat 250 mL of water to 60 Cº. Place in calorimeter, and allow the temperature to become fixed. Record this temperature as well. Observations- In part 1, I observed that when the air ports are closed, the flame gets smaller. Also, I observed that when an evaporating dish is held in a flame, it begins to turn into a greenish tint. This leads me to think that a chemical reaction has taken place between the flame and the surface of the dish. Also, when copper is left in the flame, it changes color very strongly. In part 5, I made more observations. I observed that a graduated cylinder had markings to where it could read from 1-10 ml of a liquid. I also saw that it could go as specific as 0.2 of a mL. I also observed, when working with the buret, that the bottom of the meniscus is at 45.6 mL. In part 6, I made more observations. I observed that when the stem of the funnel was touching the side of a beaker, it would travel down the side of the beaker to the level of the solution. Also, I observed that the reason why water was filtered through sand was because sand is a solid and water a liquid, and the particles are more freely to move in a liquid. I observed that because salt was dissolved, then it would not separate by filtration. In part 7, I made observations as well. First I observed that on a normal mercury thermometer, the two scales displayed were Farenheight and Celsius. Then I observed that where the Celsius read 0º C, the Farenheight read 32º F. Bibliography: none necessary Word Count: 634
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