a properly labeled vial. Each saturated solution was filtered the same way and placed into a labeled vial. 6 – 10 mL flask were obtained and labeled with DI water or the pH buffer that was being used. Using a micropipette‚ 100 µL of each sample was collected and placed into a labeled 10 mL flask. The 10 mL flask was then filled with DI water using a disposable pipet. The flask was then covered with parafilm and inverted to make sure the solution was mixed. The calibration curve of Salicylic Acid
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solution to be transferred i.e. acetic acid solution. – filled up the pipette (with the tip well into the solution) so that the bottom of the meniscus was sitting on the calibration mark. – transferred solution into conical flask‚ resting the tip on the inner neck of the flask
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to a variety of important concepts related to quantitative experimentation‚ including the proper use of glassware‚ and analytical balances. b. How did you do it? Briefly describe the procedures in 1 sentence. We calibrate a volumetric pipet and flask. We also calibrated a beaker and 50 mL buret. We also calculate the difference between the expected density and density obtained by our team. c. What happened? Briefly give the result (or results) of the experiment in 1 sentence. We noticed the
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Laboratory Science Abstract 85% of all medical decisions are based on the results of clinical laboratory testing. Medical laboratory science is the use of clinical laboratory tests to detect‚ diagnose‚ monitor and treat disease. Blood‚ tissue and body fluid can be chemically analyzed and examined for foreign organisms and abnormalities. This information is then used by the medical team to make decisions regarding medical care. Laboratory scientists have made important contributions to the development
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Pathology laboratories study disease. Diseases are mainly diagnosed through analysis of tissue‚ body fluid and cell samples. Pathology laboratories can also study the predicted or actual progression of particular diseases. Pathology is a field of general inquiry and research so addresses four components of disease. These components are cause‚ mechanisms of development‚ structural alterations of cells and the consequences of the changes. If a hospital sends off a sample to a pathology laboratory‚ when
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Solid-liquid extraction and liquid-liquid extraction of caffeine from tea leaves Andrew Jensen Lab partners: Jamie Pawluk‚ Joe Luong 230105559 Chem 250 L2 Oct‚4‚2012 Introduction: Extraction is the experimental procedure of obtaining a desired compound with the use of a solvent from either a liquid or solid mixture. Solid-liquid extraction involves the removal of organic compounds from solid material. This method of extraction may be achieved through extraction of the organic compound
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Trmčić David R. W. Hodgson. Aqueous methods for the preparation of 5’-substituted guanosine derivatives. The Royal Society of Chemistry [online] 2009. http://www.rsc.org/suppdata/CC/b9/b908727c/b908727c.pdf (accessed august 2012) C. Round bottom flask Jay. A. Syrett; Giuseppe Mantovani ;and David M. Haddleton. Self Healing Polymers Prepared via Living Radical Polymerization. The Royal Society of Chemistry. [Online] 2010‚ p1-16 http://www.rsc.org/suppdata/py/b9/b9py00316a/b9py00316a.pdf (accessed
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| Titration to test the purity of water‚ by determining the concentration of HCl in the water. • Using a pipette and pipette filler‚ we accurately pipetted 25 cm3 of 0.010 mol dm-3 sodium hydroxide solution into a conical flask. • Then we added a few drops of methyl orange indicator and placed it on the white tile. This solution was then titrated with the water obtained from the river. • After we stood the burrette up using a stand and clamp. • We then filled
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copper (II) sulphate salt Apparatus Eye protection Each working group will require: Glass beaker (100 cm3) Conical flask (100 cm3) Spatula Glass stirring rod Filter funnel (Note 1) Filter paper (Note 2) Bunsen burner‚ tripod and gauze Heat resistant mat PROCEDURE Stage 1 a Add 20 cm3 of the 0.5 M sulfuric acid to the 100 cm3 beaker. Heat carefully on the tripod with a gentle blue flame until nearly boiling. SAFETY: Be very careful not to knock the tripod while the beaker is on
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Determination of nitrite and phosphate Mech-1103 assignment 2 C.SUNGKUR 10/20/2016 STUDENT ID: 1615715 Faculty of engineering Title: Determination of concentration for unknown solutions of nitrite and phosphate. Author: C. SUNGKUR Student id: 1615715 Date of submission: 20/10/2016 Submitted to: Mr. Y.SEECHURN ABSTRACT When primary aromatic amine and nitrous acid react together‚ it results in a diazonium compound and this process is called diazotization
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