Determination of Total Hardness In Drinking Water By Complexometric EDTA Titration R. A. J. Cadiz1 and J. M. Nael2 1Institute of Biology‚ College of Science 2National Institute of Geological Sciences‚ College of Science University of the Philippines‚ Diliman‚ Quezon City‚ Philippines Date Submitted: May 9‚ 2013 Abstract This experiment is about the determination of water hardness through the use of complexometric EDTA titration. Determination of water hardness is important to find out the most
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Food Web Singleton 1 Food Web Derrick Singleton BIO/101 6/25/12 Mark Kato Food Web Singleton 2 While our ecosystem does exist‚ without dramatic changes‚ we can speak of the objects without contradicting
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back(idiometric) titration Mahindra (UWC of India) Chemistry lab report for back titration Name: Ashenafi Asfaw Beyene Back (Indirect) Titration Vitamin C estimation by Back Titration Table1: The amount of volume (in cm3) and concentration (in M) of KI‚ KIO3‚ and H2SO4 which were used in the experiment of Vit C estimation by back titration. VKI added
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Factors that affect how the PH changes during a titration experiment. Concentration of the alkali Having a higher concentration of alkali will mean that there will be more molecules closer together for the acid to collide with. This will speed up the reaction as collision theory suggests that molecules have to collide to react and if there are more molecules to collide with the reaction will happen faster as there is a higher chance of a collision. Volume of alkali An increase in volume would mean
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Permanent Water Hardness of Water Sources from PSHS-IRC by Indirect Titration Researchers Anna Marie S. Cabatbat Crystal Jill R. Mangsat Jan Michael Maturan Charlene Lou A. Nicer Arian Paul D. Norcio Submitted to the Faculty of the Philippine Science High School – Ilocos Region Campus in partial fulfillment of the requirements for Science and Technology Research 2 March 2013 ABSTRACT This study aimed to determine the permanent water hardness in terms of calcium carbonate
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Objective: To understand the importance of choosing suitable indicators for detecting the end points of acid-base titrations. To obtain titration curves some acid-base titrations. Materials and method: As shown in page 2 and 3 in General Chemistry practical manual 2011. Result: Part 1: Suitability of Indicators Strong acid-weak base titration Table I: Volume Titration Rough Accurate 1 Accurate 2 Final volume 0.00 14.65 0.00 Initial volume 35.20 48.00 33.50 Volume of ammonium
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points in acid-base titrations Objectives 1. To understand the importance of choosing suitable indicators for detecting the end points of acid-base titrations. 2. To obtain titration curves for some acid-base titrations. Introduction Indicator is usually a weak organic acid or base that has distinctly different colours in its protonated and deprotonated forms. There are 4 types of acid-base titrations such as strong acid-weak base titration‚ weak acid-strong base titration‚ strong acid-strong
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Sandeep Voleti- Period 4/5 Honors Chemistry Titration Lab Writeup Introduction Titration is a method‚ which is meant to find the concentration of either an acid or a base by adding a measured amount of it to a known volume and concentration of an acid or base1. Titration starts with a beaker or Erlenmeyer flask containing a very precise volume of the known concentration solution and a small amount of indicator‚ which is put underneath a burette containing the solution with unknown concentration1
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stable complex. EDTA can form four or six bonds with a metal ion. EDTA is used to capture and bind the metal ions. However‚ EDTA and the EDTA-complex are both colorless compounds and so an indicator will also need to be used. In order to prepare for titration‚ 500 mL of approximately 0.004 M disodium EDTA solution is created by weighing 0.7761 grams of 〖Na〗_2 EDTA dissolved in approximately 500 mL of deionized water. The stock calcium ion and the prepared unknown water sample‚ Unknown # 7 are used to
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Aim: To find out the mass of Iron (II) sulphate each ‘Iron tablet’ contains Background Knowledge: ‘Iron tablets’ are prescribed to patients suffering from anaemia. They contain 200mg (0.200g) of iron (II) sulphate FeSO4 We are going to analyse iron tablets to find out how much Iron (II) sulphate they contain. The procedure we will use is a REDOX reaction‚ by oxidising the Fe2+ contained in the Iron (II) sulphate to Fe3+. We will use potassium manganite (VII) as the oxidising agent. The active part
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