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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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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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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Materials:1). 0.02 mol dm-3 Potassium Manganate2). 0.2 mol dm-3 Glucose3). 2 mol dm-3 Sulphuric Acid4). 50 cm3 Burette5). 250 cm3 Beaker6). Measuring Cylinder7). Thermometer (-10 to 110 oC)Hypothesis:By adding glucose to a solution of KMnO4 and H2SO4‚ the solution will turn colourless and it will take a specific time for the reaction to complete. By increasing the temperature‚ the time it takes (the rate) for the solution to completely change to colourless will be increased. Thus it can be said‚
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ice faster‚ consequently raising the temperature of the solution‚ than lower density salts would. . The data I collected shows potassium chloride‚ which has a density of 1.98 g/㎤‚ increased the solution’s temperature at a faster rate than any of the other solutions. Using the data I collected‚ I can unequivocally state that my data did not support my hypothesis. Potassium chloride had the fifth highest density out of the seven salts I used in my experiment. The highest density salt I used‚ sodium
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To: Cancer Research George C. Prendergast‚ PhD‚ Editor-in-Chief Re: xxxx et al. Manuscript on _____________. Dear Editor(s)‚ Available for your review is our manuscript entitled “___________” submitted for publication in Cancer Research. The current manuscript describes for the first time______. Our results further indicate that _______. All authors of this research paper have directly participated in the planning‚ execution‚ or analysis of the study. All authors of this paper have read
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