surface area. Apparatus and Materials Available 3 x 250 mL beakers magnesium ribbon (1 cm) 3 x test tubes magnesium powder test tube rack mossy zinc 10 mL graduated cylinder copper turnings 3 x Alka Seltzer® tablets copper(II) sulfate 0.1 M hydrochloric acid‚ HCl hot bath 1.0 M hydrochloric acid‚ HCl ice bath 6.0 M hydrochloric acid‚ HCl steel wool pieces of zinc (1 cm x 1 cm) thermometer *additional materials may be made available upon request*
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8/21/2009 |Secondary 2 | Shela Septania Usadi | [pic] Table of Contents Part 1: Abstract 1 Part 2: Introduction 1 Fire 1 Color Of Fire 2 Colored Flame 2 Part 3: A Simple Experiment‚ Green Flames 5 The Materials 5 The Method 5 A Higher Explanation 5 Part 4: Multicolored Fire 6 The Materials 6 The Method 6 Part 5: Uses Of Colored Fire 7 Part 6: Effects
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allowing the product to be distilled at the correct rate and not too rapidly. This will prevent the reaction mixture from refluxing into the organic‚ while minimizing the loss of material. Absorbing the residual water from the organic with sodium sulfate was crucial as well to ensure that our organic product was pure. The purity of our products was tested by taking the boiling point and comparing it to the expected range of cyclohexene. The boiling point and the percent yield together gave us a more
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Earth Batteries Dirt makes pretty good batteries. It seems like moist dirt packed tightly works the best. Add just enough water but not too much. I guess if the dirt dries up‚ you’ll have to water the batteries along with the rest of the plants. The soda can version works but I haven’t tested extensively. You don’t really have to use a penny‚ just has to be copper. Perhaps other common materials would work better. Each cell gives you a useless 0.5 volts. But if you link them in series you can
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Earth. 1. What is the systematic name for a compound with the formula Cu2SO4? (A) (B) (C) (D) 3. In which compound do all atoms have the same electronic configuration? (A) (B) (C) (D) 4. Copper sulfide Copper (I) sulfate Copper (II) sulfate Copper disulfate LiF NaCl MgF2 NCl3 Identify the property which decreases across each row of the Periodic Table. (A) (B) (C) (D) Melting point Ionisation energy Valency Atomic radius 11. Which is correct in describing
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reactions and compared the percentages of alkyl chloride and alkyl bromide in the product. To perform this experiment‚ we used methods including heating reaction mixture under reflux‚ extraction using a separatory funnel‚ drying with anhydrous sodium sulfate‚ and refractometry. Experiment Scheme: First‚ we prepared the solvent-nucleophile medium. We combined 44mL 7.7M sulfuric acid with 4.75g ammonium chloride and 8.75g ammonium bromide‚ and we heated the mixture with stirring to dissolve the salts
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AADE-10-DF-HO-08 Critical Considerations for Successful Hydraulic Fracturing and Shale Gas Recovery Jennifer Fichter‚ Alexander Bui‚ Greg Grawunder‚ and Tom Jones; Baker Hughes Copyright 2010‚ AADE This paper was prepared for presentation at the 2010 AADE Fluids Conference and Exhibition held at the Hilton Houston North‚ Houston‚ Texas‚ April 6-7‚ 2010. This conference was sponsored by the Houston Chapter of the American Association of Drilling Engineers. The information presented in this paper
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available in powdered form. It must be reconstituted by adding 10 ml sterile water to the vial. The resulting concentration is 125 mg per mL. The patient is to receive 200 mg. Give the patient __1.6_____mL. 5. Administer morphine sulfate 6 mg‚ IM‚ q 4 h PRN. Morphine sulfate is available as 10 mg per mL. Administer __0.6______mL. 6. The patient is to receive an IV infusion at 150 mL per hour. Using an administration set with a 15 drop factor tubing‚ set the flow rate at ___38______drops/min
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The enzyme tyrosinase was successively extracted by combining a homogenate of a potato and sodium sulfate with ammonium sulfate. Tyrosinase was successfully extracted by taking advantage of solubility properties of certain proteins. A standard curve was generated indicating dopachrome absorbance values through the use of a spectrophotometer and a computer graphing program. A spectrophotometer was used to measure either the amount of light that passed through a solution (transmittance) of the amount
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Double Replacement Reactions Lab Pre-Lab 1. If a solid‚ a gas or a weakly ionizing compound such as H2O formed‚ then a reaction has occurred. 2. The formation of a solid‚ the formation of a gas and the formation of a weakly ionizing compound are the driving forces that control a double replacement reaction. 3. a. Balanced equation: CaCl2 (aq) + NaPO4 (aq) Ca3(PO4)2 (s) + 6NaCl (aq) Ionic equation: 3Ca2+(aq) + 6Cl-(aq) + 6Na+(aq) + 2PO43- (aq) Ca3(PO4)2 (s) + 6Na+ (aq)
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