PERSONAL PROTECTIVE EQUIPMENT Hazards exist in every workplace in many different forms: sharp edges‚ falling objects‚ flying sparks‚ chemicals‚ noise and a myriad of other potentially dangerous situations. Controlling a hazard at its source is the best way to protect employees. Depending on the hazard or workplace conditions‚ the use of engineering or work practice controls to manage or eliminate hazards to the greatest extent possible. When work practice and administrative controls are
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References: Organic Chemistry Laboratory I‚ CH 337M; Department of Chemistry‚ Portland State University: Portland OR; p 1 Lab Two Question 1. 2. Recrystallization is generally not an effective purification method for a solid which is highly impure because the impure component could
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Proper Use Of Micropipettes A micropipette is one of the instruments that is usually used in science laboratories .Micropipette are used to accurately measure and dispense small volumes of liquid . The capacity of a micropipette can range from less 1µl to 1000µl (1ml) .There are glass pipettes ‚ air displacement pipettes ‚ and positive displacement pipettes . Mostly ‚ the air displacement pipettes and positive displacement pipettes are used . Firstly ‚ the piston is moved to the appropriate
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measured in the short time available for each experiment Temperature * Bunsen Burner * Tripod * Heat Mat * Gauze * Beaker * Measuring Cylinder * Water * Thermometer * Safety Goggles * Gloves * Tongs * Scales Method Equipment - Control Variables * In this experiment the control variables are the volume of water we use for each beaker. If we change the volume of water for each beaker‚ the results we get will not be relevant‚ since we are seeing what affects the rate
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figure out what it is composed (by the various separation techniques) and teaches us the beauty of science. Determining the % mass composition of a sand-salt mixture can tell us how much salt is in our beaches and this is important in some ways. Equipment | Quantity | Safety Glasses | X1 | Beaker (250mL) | X1 | Stirring Rod | X1 | Filter Funnel | X1 | Filter Paper | X1 | Conical Flask | X1 | Electronic Balance | X1 | Sand-Salt Sample | Given Amount | Evaporating Basin | X1 | Bunsen
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Sam Chu (Jacob Gorman and Tyler Kui) Lab #1: Separation of a Mixture Mr. Mejia 10/3/14 Separation of a Mixture Lab Report Abstract The purpose of the experiment was to separate an initial heterogeneous mixture composed of 5.00 grams of salt‚ 2.00 grams of sand‚ 50.0 mL of water‚ 15.00 grams of pebbles‚ and 1.00 gram of iron filings‚ and leave as much salt as possible remaining. Using separation techniques including magnetizing‚ evaporation‚ filtration‚ etc. the heterogeneous mixture was thoroughly
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the mixture. 4. The mixture was then slowly heated while being stirred consistently. Once white clumps (curds) were seen the burner was turned off. 5. The filtering apparatus was set up. 6. The mixture was poured into the filtering equipment until all liquid (whey) was separated from the curds. 7. The way was then poured into the sink. 8. Curds were then put back into their original beaker and one spatula of baking soda was put into the mixture. 9. The mixture was stirred and then
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Do not look directly at the burning metal! Do not stir or otherwise disturb the product in the crucible. When finished‚ discard the entire contents of the crucible into a designated beaker provided by the instructor. Keep hot equipment at safe distances and do not touch till it is has cooled for the instructed amount of time. G) Procedure/Observations: Procedure Observation Conclusion Place a crucible on a clay triangle balanced on a ring support clamped to a ring stand
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Remove the ‘’The Scientific Method’’ experiment bag from the LabPaq box. Actions Taken: I opened up my LabPaw box and sorted through the equipment to find the plastic bag labeled ‘’The Scientific Method.’’ 2. Remove the vials containing the six unknown substances from the experiment bag. Actions Taken: I removed the vials and placed them on my counter in order from 1-6. I then studied the
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the defining characteristics of the golf equipment industry? What is the industry like? 2. What is competition like in the golf equipment industry? What competitive forces seem to have the greatest effect on industry attractiveness? What are the competitive weapons that rivals are using to try to outmaneuver one another in the marketplace? Is the pace of rivalry quickening and becoming more intense? Why or why not? 3. How is the golf equipment industry changing? What are the underlying
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