other words‚ we created the perfect eco-friendly bouncy ball. The materials we used to create this eco-friendly ball were polyvinyl alcohol (PVA) and polyvinyl acetate (PVAc) and we reacted them with sodium borate (borax). Polyvinyl acetate (PVA) is a water-soluble synthetic polymer. It has the idealized formula [CH2CH]n. Polyvinyl acetate (PVA) is a synthetic resin polymer. The chemical formula of this component is (C4H6O2)n. The last component is sodium borate (Borax). It is an important boron
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250 ppm‚ 200 ppm‚ 100 ppm‚ and 25 ppm of 12C solution was prepared from a caffeine stock solution using ethyl acetate as the solvent. 250 µL of each dilution was added to a respective 0.6 mL vials with 50 µL of 13C and mixed. Next‚ three 15 mL centrifuge tubes were labeled as “Unknown A‚” three were labeled as “Unknown B” and one was labeled “Control.” To each tube‚ 4 mL of ethyl acetate and 1 mL of the respective unknown or control (100 ppm 12C solution) was added to the respective flasks. Each
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Synthesis The old acetate department located in an old four storey building follows a workflow that is heavily based on shifts/rotations because production is based on a per batch basis. A typical shift‚ the group leader and his crew would complete two or three batches. The night shift usually has lesser work because no deliveries were made. In the new system‚ the management wants to improve productivity. The department was redesigned from batches to continuous processing. Technical changes
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Contents Page Design Situation……………………………………………………………………………………………………………………2 Design Brief…….……………………………………………………………………………………………………………………2 Limitations……………………………………………………………………………………………………………………………3 Design Specification…………………………………………………………………………………………………………..4‚5 Existing Products……………………………………………………………………………………………………………….6‚7 Justification of Existing Products.………………………………………………………………………………………….8 3 Design Ideas………………………………………………………………………………………………………………………9 Design No.1……………………………….……………………………………………………………………………………9
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Preparing Isopentyl Acetate by the Fischer Esterification Preparing Isopentyl Acetate by the Fischer Esterification Leah Monroe May 8‚ 2003 Organic Chemistry Lab II Experiment performed on April 29 and May 1‚ 2003 Abstract: The purpose of this experiment was to synthesize isopentyl acetate via an esterification reaction between acetic acid and isopentyl alcohol‚ using concentrated sulfuric acid as a catalyst. The product was washed with sodium hydrogen carbonate‚ as well as with water
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Undoped and Ce doped ZnO thin films were prepared by the sol-gel process. Zinc acetate dehydrate was dissolved in a mixture of absolute ethanol and monoethanolamine (MEA) yielding to a precursor concentration of 0.4 M .The MEA to zinc acetate molar ratio was set to 1. For doped films‚ cerium nitrate was added to the mixture with an atomic percentage fixed at 0.1‚ 0.3‚ 0.5‚ 0.7‚ and 0.9 at.% Ce‚ respectively. The resulting sols were magnetically stirred at 60°C for 1 hour and then aged at room temperature
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compound) for glucose and sodium acetate. (5 marks) C6H12O6 + 6O2 6CO2 + 6H2O The no. of mole of glucose = 1/(12x6 +12x 1+6x16)=5.56x10-3mole The ratio of glucose and oxygen is 1:6 The no. of mole of oxygen= 5.56x10-3 x 6 = 0.033mole Therefore‚ the theoretical oxygen demands for glucose =0.033 x (16x2) =1.067 g oxygen/g glucose CH3COONa + 2O2 2CO2 + H2O The no. of mole of sodium acetate =1/(12x2 + 16x2 + 3x1 +23)=0.012mole The ratio of sodium acetate and oxygen is 1:2 The no.
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of 0.5 M NaOH to raise pH by 2 units (mL) | | | Volume of 0.5 M HCl to lower pH by 2 units (mL) | | | Volume of 0.5 M NaOH at equivalence point (mL) | | | Data Analysis 1. Write reaction equations to explain how your acetic acid-acetate buffer reacts with an acid and reacts with a base. 2. Buffer capacity has a rather loose definition‚ yet it is an important property of buffers. A commonly seen definition of buffer capacity is: “The amount of H+ or OH– that can be neutralized
Free PH Acid dissociation constant Acetic acid
INDEX S. No. | Title | 1. | Introduction | 2. | Company Background | 3. | Product (Description and Cost Analysis) | 4. | Statistics | 5. | Focus Groups | 6. | Strengths and Weaknesses | 7. | Recommendations | 8. | Conclusion | 9. | References | INTRODUCTION * Written By:- William A. Preshing Denise Walters. * Organization:- Tanner Company. * Product:- THERM-EZE. * Primary Focus:- Segmentation‚ Targeting‚ Positioning. * Secondary Focus:-
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(it can self-ignite). • Cellulose acetates were developed to replace nitrate. Cellulose triacetate‚ called safety base‚ is much safer to use and store than nitrate. Most current KODAK and EASTMAN Motion Picture Films are coated on a cellulose triacetate base. • Polyester base is used for all print films‚ most duplicating films‚ and some specialty films. Polyester is stronger and wears better than triacetate. Polyester’s storage life is up to ten times that of acetate.
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