Before putting your tip into the liquid‚ depress the plunger to the first stop. This stop is the stop that is calibrated to the volume on the indicator. 5. Hold the micropipettor vertically and place the tip in the liquid to be pipetted. Do not immerse the tip completely. The tip should be inserted into
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Department of MECH an ica l.in Paavai Institutions ch UNIT II ww w. me LINEAR AND ANGULAR MEASUREMENTS UNIT-II 2. 1 Department of MECH CONTENTS LINEAR MEASURING INSTRUMENTS 2.1.1 SCALES 2.1.2 CALIPERS 2.1.3 VERNIER CALIPERS 2.1.4 MICROMETERS 2.1.5 SLIP GAUGES 2.3 LIMIT GAUGES 2.4 PLUG GAUGES 2.5 TAPER PLUG GAUGE 2.6 RING GAUGES 2.7 SNAP GAUGE 2.8 TAYLOR’ S PRINCIPLE 2.9 COMPARATORS
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CHEMICAL EQUILIBRIUM I. Introduction In a chemical reaction‚ when reactants are mixed together in a reaction vessel‚ the whole of the reactants do not get converted into products. After some time‚ there will come a point when a fixed amount of reactants will exist in harmony with a fixed amount of products; neither amount will change anymore. This state is called chemical equilibrium (Birk‚ 1994; Jones‚ 1987; LeMay‚ 2002). There are three characteristics of a system in chemical equilibrium: a
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Introduction: Trying to find a good‚ quantitative procedure that students can use for exploring photosynthesis is a challenge. The standard procedures such as counting oxygen bubbles generated by an elodea stem tend to not be “student” proof or reliable. This is a particular problem if your laboratory instruction emphasizes student-generated questions. Over the years‚ I have found the floating leaf disk assay technique to be reliable and understandable to students. Once the students are familiar
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American Association State Highway and Transportation Officials Standard AASHTO No.: T 153 Designation: C 204 – 07 Standard Test Methods for Fineness of Hydraulic Cement by Air-Permeability Apparatus1 This standard is issued under the fixed designation C 204; the number immediately following the designation indicates the year of original adoption or‚ in the case of revision‚ the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript epsilon (e) indicates
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would be that the needle was only partially in the veinwhile the portion of it is sticking out the skin. Objective #6 A phlebotomist collected a serum potassium specimen by syringe and forced the blood into the collection tube by pushing the syringe plunger until the tube was full. Specimen processing rejected the specimen after it was centrifuged. Choose one of the following as the reason the specimen was rejected: the specimen was clotted‚ the specimen was hemolyzed‚ or the specimen was QNS. Explain
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Briefly explain the appropriate procedures in handling liquid with a micropipette Basically‚ there are two types of technique used for handling liquid using micropipette. One of them is the forward pipetting and another one is reverse pipetting. The usage of these techniques varies with the type of liquid that will be handled. Forward pipetting normally use for pipetting the aqueous solution‚ acid and alkali‚ volatile compound and also radioactive compound. Forward pipetting has higher accuracy
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When blood is removed from a vein‚ it is called venipuncture or phlebotomy. Venipuncture should be performed with care. The veins of a patient are the main source of specimens for testing‚ the entry point of medications‚ and the site for IVs and blood transfusions. Because there are only a limited number of easily accessible veins in a patient‚ it is important that everything be done to preserve their good condition and availability. Universal precautions should be observed at all times. Gloves should
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weight at which it takes to move the plunger. Then we used the calculations from measuring the different pressures and volumes in the syringe as weight was added. These measurements gave a ratio of through which we then use to find the atmospheric pressure. b[(p/k)-(f/ka)]. We compare our findings to a barometer in the class to see how close they are to one another. We had an average of 6% difference in our readings. This difference is easily accounted for as the plunger was of low caliber and didn’t move
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2013‚ from eNotes: http://www.enotes.com/flavored-coffee-bean-reference/flavored-coffee-bean Gourmet Getaways. (n.d.). Retrieved 7 31‚ 2013‚ from North Coast Food and Wine Tours: http://gourmetgetaways.com.au/files/2012/09/Lorne-Macadamia-Nut-Farm-plunger-coffee.jpg Nescafe. (n.d.). Coffee Production. Retrieved 7 30‚ 2013‚ from All You Need to Know About Coffee: http://www.nescafe.com/coffee_production_en_com.axcms Types of Coffee. (n.d.). Retrieved 7 31‚ 2013‚ from Two Rivers Roasting Co.: http://www
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