Separation of a Mixture: Unknown # 12-Green Chemistry 221 with Professor Thomas Quale May 2012 Formal Lab Report Abstract An unknown sample‚ # 12-Green‚ was separated into its individual variable components‚ iron‚ ammonium chloride‚ silicon dioxide‚ and sodium chloride. The techniques used to separate the components of unknown # 12-Green‚ magnetism‚ sublimation‚ extraction‚ and filtration‚ were chosen based on the unique properties of each component. Using these separation techniques‚ each substance
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Abstract This experiment introduces magnetism‚ evaporation and filtration as ways to separate mixtures. Temperature when soluble Sand N/A Iron N/A Sodium Chloride 400F Benzoic Acid 100F Experiment and Observation After gathering all the material needed to conduct these experiments‚ the first experiment was initiated. The mixture of solids was weighed out as well as the 10cm square piece of paper and the weighing dish. The mixture was spread out in a very thin layer on a piece
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Controlled Variables: * The pressure of the room. * The mass of zinc chloride reacted. * The volume of water in the beaker. * The equipment used. Materials: * Zinc chloride particles * Water Equipment: * Electronic balance (± 0.005 g) * Beaker‚ 1 liter * Graduated cylinder (100 cm^3 ± 1 cm^3) * Bunsen Burner Method: 1. I obtained 5 grams of zinc chloride particles. Electronic balance is used to measure the mass of the particles.
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disappeared and showed no scar tissue. Emily was scheduled to undergo one more chemotherapy session on February 26th to rid of any last traces her tumor may have left behind. (Jerry‚ C.) At 4:30 P.M.‚ a nurse administered a solution of sodium chloride through her IV while Emily was napping. She was awoken feeling very tired and weak struggling to sit up. She was holding her head complaining of pain. She became suddenly thirsty and within minutes‚ she was
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Sealable‚ zipper-lock plastic bags‚ quart size‚ 6 Measuring spoons‚ teaspoon and half-teaspoon‚ 1 each Water‚ distilled‚ or deionized Phenol red‚ 0.02% aqueous solution 30mL Sodium Bicarbonate (solid)‚ 3 tsp. Calcium Chloride (solid)‚ 6 tsp. Safety Precautions: Calcium chloride is slightly toxic by ingestion. Phenol red is a dye solution and will stain skin and clothing. Avoid contact of all chemicals with skin and eyes. Be careful to mix the chemicals in the amounts called for in the procedure
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will result in an insoluble solid. See method for more detail. It is expected that the following compounds will form precipitates Silver Sulphate‚ Copper Hydroxide‚ Copper Iodide‚ Silver Hydroxide‚ Silver Iodide‚ Cobalt Hydroxide and two Silver Chlorides. This was worked out by completing the double displacement reactions and using a table of solubilities. (See appendix one & two) In any experiment involving chemicals a hard wearing plastic apron‚ safety glasses and closed in leather shoes should
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for some chloride salts‚ including sodium chloride (NaCl)‚ which are used as de-icing agents on roads. The application of these de-icers on roads and other impervious surfaces in North America during winter months was in practice since the 1960s. The amount of snow fall is so high in these areas that snow and ice management becomes very essential to prevent road accidents‚ to maintain a continuous flow of traffic and to ensure safe pedestrian travel during winter months. Sodium chloride is the most
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DEET will be prepared from m-toluic acid through the intermediate acid chloride and then identified by its IR and proton NMR spectra. The overall reaction is a series of two acyl substitutions and is shown in Scheme 1 below: [pic] Scheme 1 Carboxylic acids can be converted to acid chlorides by treatment with a compound such as phosphorus trichloride (PCl3) or thionyl chloride (SOCl2).2 The reactive acid chloride can then be treated with a primary or secondary amine to
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Results Calculation a) 50ml of suspensions containing 5% w/v of sulpharmerazine which containing 10-2‚ 5 x 10-3‚ 10-3‚ 5 x 10-4‚ 10-4‚ 5x 10-5‚ and 10-5 molar concentrations of Calcium Chloride. ( 10-2 are provided ). By using this formula‚ we can get the amount of calcium chloride to be added in making 50 ml suspensions containing 5% w/v of sulpharmerazine. M1V1 = M2V2 M2 = 5 x 10-3‚ 10-3‚ 5 x 10-4‚ 10-4‚ 5x 10-5‚ and 10-5 M ‚ V2 = 50ml M1 = 0.01M Thus‚ V1 = ( M2 . V2 )
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Lab Report Using Gravitational Force as a Measurement Tool Answer the following questions about the results of this activity. Record your answers in the boxes. Send your completed lab report to your instructor. Don’t forget to save your lab report to your computer! Activity 1 Record your data from Activity 1 in the boxes below. Enter the data for the sample you used in each trial (5000 rpm‚ 10000 rpm‚ etc…) in the appropriate columns and the corresponding g-force‚ number of layers‚ and
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