Tripoli Campus Chem 200 Lab Report Experiment 6 : Redox titration Course Instructor: Dr Lisa Diab Student Name: Marwa Noaman ID: 51230262 Introduction: To determine a substance analytically‚ oxidation- reduction reactions are used. During any redox reaction transferring of reactions occurs from a reducing agent to an oxidizing agent. Purpose: * To titrate "Mohr’s salt" solution with KMNO4‚(second standard) which has to be standardize with oxalic acid (first
Free Oxidizing agent Potassium permanganate Carbon dioxide
Title Soda Ash: Great for the economy but detrimental to the body; So why is it involved in everyday life? Abstract Sodium carbonate‚ Na₂CO₃‚ commonly known as soda ash is used in the manufacturing of many economically important products such as the manufacturing of glass‚ chemicals‚ paper and detergents. Since sodium carbonate has a strong base‚ it is commonly used to neutralize acidic effects. Soda ash has a high pH in concentrated solutions and can irritate the eyes and skin as well
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the conical flask underneath the burette and titrate the sample of water with the silver nitrate solution. Stop the titration when the end point (a slightly reddish colour) appears in the flask. 9). Repeat steps 7). and 8). until you have a rough estimate and 3 precise and accurate titre values. 10). Tabulate the results and use them to find the average titre value for this titration and so work out the concentration of chloride ions in the tap
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Purpose Use a standardized potassium permanganate solution to analyze an unknown iron solution by using redox titration. Theory Reduction-oxidation titration is an analytical method based on electrons transferring between an oxidizing agent and a reducing agent in solutions. Chemical analysis can be built on Redox titration if four criteria are met: a) The reaction is completed in a thermodynamically spontaneous condition. b) The reaction is fast enough to give an operational result instantly
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Narki SACKEY IB1B Topic: Acid-Base Titration Aims: 1. To use methyl orange and phenolphthalein as indicators to determine accurately the end of an acid-base titration. 2. To present titration data correctly. Observations: Table of Results Showing The Amount Of 0.12 Mol/dm3 Hydrochloric Acid Required to Neutralise 25cm3 Of Sodium Carbonate of an unknown Concentration Using Methyl Orange Indicator. Pipette Solution | Sodium Carbonate | Mol/dm3 | Burette Solution | Hydrochloric Acid | 0.12Mol/dm3
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Some assays (e.g.‚ biochemical assays) may be similar to or have overlap with chemical analysis and titration. But generally‚ assays involve biological material or phenomena which tend to be intrinsically more complex either in composition or in behavior or both. Thus reading of an assay may be quite noisy and may involve greater difficulties in interpretation than an accurate chemical titration. On the other hand‚ older generation qualitative assays‚ especially bioassays‚ may be much more gross
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improvements for Future investigations D1 Titration: positive aspects of experiment in terms of accuracy -Checking to see if any air bubbles were present and if the burette was leaking before doing the titration. If I did not do this‚ it would alter the end point and hence the titre results. -Recording the volume reading before doing the titration. -Making sure I was using the burette correctly‚ to deliver a stream of titrant to within a few millilitres
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Topic : Determination of the amount of dissolved oxygen in a water sample by iodometry-the winkler’s method. Objective: To determine the amount of dissolved oxygen in a water sample by iodometry- the winkler’s method. Apparatus: volumetric pipette‚ 3 conical flask‚ burette‚ burette clamp‚ Pasteur pipette‚ reagent bottle‚ conical flask stopper‚ retord stand‚ white tile Materials: 2 ml manganese sulphate solution‚ 2 ml alkaline-iodine solution‚ 0.025M sodium thiosulphate solution‚ 2ml concentration
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ratio in a reaction by determining the amount of excess reactant‚ amount of product‚ and amount of hydrogen gas produced as well as finding the best research method to determine the charge. To accomplish this‚ three different methods were used. Titration was used to react NaOH with HCl to determine the amount of H+ left over after the reaction is complete. Crystallization was used to determine the amount of MgCl₂ made after the reaction is done. Both of these methods allowed us to calculate the
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Name: Beatrice Yeo Zi Hui Lab Group: B1 Fume Hood Number: B4 Matriculation Number: A0102491R Email Address: a0102491@nus.edu.sg Date: 1st February 2013 CM1191 Experiment 1: Study of Solubility Equilibrium 1. Abstract The aim of this experiment is to determine the relationship between the solubility of potassium hydrogen tartrate (KHC4H4O6) and temperature. Titrate a known concentration of NaOH against a saturated solution of KHC4H4O6 at different temperatures to obtain the concentrations
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