Purpose The purpose of this experiment is to observe a redox reaction and understand what it means. We will observe the new bonds formed and the importance of the electron in the formation of these new bonds. Materials Boileezers (boiling chips) Desiccant 0.17M acetic acid (acidified water) Solution of Sodium thiosulfate Granular zinc Iodine crystals Zinc ion and iodine-iodide-triiodide ion in water Solid zinc iodide Mineral oil Silver nitrate Magnesium turnings 3M Hydrochloric acid (HCl) solution
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EXPERIMENT 10 Volumetric Analysis I Standardization of NaOH Solution Outcomes After completing this experiment‚ the student should be able to: 1. 2. 3. 4. Demonstrate the concept of quantitative analysis. Make solution and standardize it. Explain the difference between primary and secondary standard solutions. Quantitatively determine the concentration of a base. Introduction Titration is a common method of quantitative analysis used to determine the concentration of an unknown substance in a solution
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Shiela Mae Molina Date Submitted: July 12‚ 2013 Experiment 3 ACID – BASE TITRATION I. Objectives * Determine the purity of Potassium Acid Phthalate * To titrate effectively II. Data and Results A. Measurement of the Relative Strengths of Acid and Base B. Standardization of Sodium Hydroxide Primary Standard used: Potassium Acid Phthalate (KHP) Formula Mass of Primary Standard: 204.22 g/mol% % Purity of Primary Standard: 99.9% Trials | 1 | 2 | 3 | Mass
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proceeding to the titration of soft drink samples‚ the exact concentration of NaOH must be known through the process of standardization which involves performing a titration with a known amount of a stable acid‚ which in this case is the monoprotic acid potassium hydrogen phthalate.
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Formula: for NaoH N NaoH = grm KHP / ml NaoH x KHp /1000ml Formula: for HCL (NV) HCL = (NV) NaoH or N HCL V HCL = N NaOH V NaoH N HCL = VNAOH (NNaoH) / VHCL (for more info page 62-63 of the photocopy) KHP = Potassium hydrogen phthalate = KHC8H4O4 = Mw - 204.23 Trial 1: NNaoH = 1grm / 20.6 x 204.23 /1000 = 1grm / 4.21 = 0.24 normal NHCL = 20.6 (0.24) / 39.5 = 4.94 / 39.5 = 0.125 or 0.13 Trial 2: NNaoH = 1grm / 20.8 x 204.23 /1000
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Barrier Studies of Potassium Permanganate-LDPE Nanocomposites a a a Rahim Khosravi ‚ Seyed Ali Hashemi ‚ Seyed Alireza Sabet & Amir Masoud Rezadoust a a Department of Composite Engineering and Processing‚ Iran Polymer Institute‚ Tehran‚ Iran Version of record first published: 05 Feb 2013. To cite this article: Rahim Khosravi ‚ Seyed Ali Hashemi ‚ Seyed Alireza Sabet & Amir Masoud Rezadoust (2013): Thermal‚ Dynamic Mechanical‚ and Barrier Studies of Potassium Permanganate-LDPE
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on Global and Chinese Cross-linked polyacrylate potassium Industry‚ 2009-2019 is a professional and in-depth market survey on Global and Chinese Cross-linked polyacrylate potassium industry. The report firstly reviews the basic information of Cross-linked polyacrylate potassium including its classification‚ application and manufacturing technology. The report then explores global and China’s top manufacturers of Cross-linked polyacrylate potassium listing their product specification‚ capacity‚
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concentration difference on either side of the membrane. Testing the hypothesis relating to the effect of molecular weight to the diffusion rate‚ agar plate set-up was used to observe the diffusion of different substances. The methylene blue and potassium permanganate (KMnO4) was used and placed in the plate. Because the two substances have distinct colors‚ the measurement of the diffusion zone was identifiable within the interval period of fifteen minutes and continues up to one hour. The diameter
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Title: Redox Reaction Introduction: Some of the most important chemical reactions are Redox reactions. They are also known as oxidation-reduction reactions. This reaction passes one or more electrons from one species to another. The species that loses electrons are being oxidized while the species that gains electrons are reduced. The reaction occurs simultaneously. Numbers are given to each element in a chemical reaction to help us find out which element is oxidized and which is
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CHAPTER I INTRODUCTION Background of the Study Banana is a popular fruit. It’s easy to peel‚ easy to eat‚ and easy to find‚ typically located in a prominent spot in the produce section of a grocery store. With the wheels of the grocery cart still moving‚ we don’t stop to think about the battles the banana grower had to fight to provide a perfect fruit for our convenient consumption. Fusarium wilt or Panama disease is a severe disease of banana plants caused by the fungus Fusarium oxysporum f.sp
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