Materials/Equipment: • Plastic syringes with Luer-Lock‚ 30 mL • Space Sand • Scissors. • Cotton rounds • Clear plastic cups or drinking glasses • Permanent marker & Safety goggles. • Isopropyl alcohol • Distilled water • Grape soda • Lab notebook. Procedures: 1. In the lab notebook‚ you would have to make data tables like Table 1 and Table 2. You would have to put down data 2. Get out three plastic cups or drinking glasses. Pour some 70% isopropyl alcohol into one‚ distilled water into another
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Lab 2: Infra-Red (IR) - Nuclear Magnetic Resonance (NMR) Exercises In Molecular Spectroscopy - Structural Determination Organic Chemistry II CHEM 2425 Manrique October 30‚ 2012 Alex Wolf Introduction For the purposes of this lab‚ the chemical formula will be given‚ and the degrees of unsaturation can be calculate from the formula (2C+2)-(H+Hal-N)/2. The degrees of unsaturation will give clues as to the structure. A double bond‚ as well as a ring will have one degree of unsaturation each
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Graduated Cylinder 7. Safety Goggles 8. Plastic Spoon 9. “Magic” Paper (c) Safety/disposal 10. Do not eat if allergic 11. Dispose butter milk into big jar (d) Procedure
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clean ice. As I grew and matured throughout the years‚ figure skating was always a constant throughout my adolescence. Every morning I would rise before the sun did‚ hoping to get in a few extra hours of practice before school. I had tunnel-vision goggles and skating was my one and only view. When friends would invite me over for slumber parties and giggles‚ I would have to be at practice. At my most
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If the electrolyte solution is highly concentrated‚ then the amperage productions will also increase and vice versa. In a galvanic cell‚ the amperage is generated from flows of electrons between the two metals in the metal sulfate solution of the electrolyte. In order for a chemical reaction to take place‚ the reactants must collide. The collision between the molecules in a chemical reaction provides the kinetic energy needed to break the necessary bonds so that new bonds can be formed. Thus‚ increasing
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1 stock solution‚ 50-mL ; Lens tissues ; Pipets‚ serological‚ 10-mL ; Sample of consumer sports drink‚ 10-mL ; Spectrophotometer ; Test tube rack Procedure: 1) Preeminently‚ follow all laboratory safety guidelines ensuring that you have safety goggles on at all times throughout the lab. 2) Fill the cuvette 2/3 of the way with water. 3) Select the appropriate wavelength on the spectrophotometer. 4) Place the cuvette in the spectrophotometer and click the calibrate button. 5) Put 5mL of stock
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Density 5. Describe how you will determine the volume of an irregularly shaped solid.- In a liquid 6. Describe how you will calculate density.- Mass/volume 7. In what periods can you find Pb‚ Sn‚ Si‚ and Ge?- Period 3 Materials: Safety goggles Apron Water 100 ml graduated cylinder Centigram balance Lead Silicon Tin Procedure: 1. Determine the mass of the samples to the nearest 0.01 gram. Record. 2. Fill a 100 ml graduated
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more people to meet customer demand. They now have 125 employees‚ 3 suburban branches‚ and annual revenues approaching $10 million. Overlooking their LAGOON‚ where employees try out new water gear (kayaks‚ swim fins‚ wet suits‚ racing suits‚ goggles)‚ Norton says to Kenny‚ “Maybe we are getting too old for this. I got the prototype for the new soccer gear‚ and the labeling looks funny to me.” Kenny frowns. Norton continues‚ “Some funny language. Maybe two. Looks like Spanish. Agua is water
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Commercial Bleach II. Purpose: III. Materials: Commercial bleach‚ 5% NaClO. (5 mL). Hydrochloric acid (HCl)‚ 3M. (6 mL). Potassium Iodide (KI). (6 g). Sodium thiosulfate solution (Na2S2O3)‚ 0.100 M. (70 mL). Starch solution 2%. (3 mL). Safety goggles Apron Digital scale Buret Buret clamp Erlenmeyer flask Pipet bulb Ring stand Ttransfer pipet‚ 5 mL and 25 mL Volumetric flask‚ 100 mL Stopper Wash bottle Distilled water Weigh boat Beakers‚ IV. Procedures: 1) Use the 5 mL transfer
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by the enzyme trypsin. Risk Assessment: RISK ASSESS CONTROL Trypsin solution‚ NaOH solution and HCl Solution The solutions are irritant to the skin and can be lethal is consumed. It can also be harmful if contacted with eyes. Wear safety goggles during use of solutions‚ if splashed onto skin‚ immediately rinse with cold water. Cuts from glass Cuts to skin when breakage occurs Immediately inform teacher and follow instructions to clear away glass Burns from heat Burns to skin from hot
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