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Lab report on synthesizing salt/ titration/EDTA - Essay Example

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One of the major objectives of this experiment was to determine how synthesis of compounds occurs in the laboratory. The process of synthesis normally involved various steps in order to…
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Lab report on synthesizing salt/ titration/EDTA
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"Lab report on synthesizing salt/ titration/EDTA"

Download file to see previous pages Given the acquired knowledge about laboratory synthesis, another objective was to quantitatively analyze the product from the synthesis. The fourth objective was to quantitatively analyze the compound through titration with EDTA. (Fex(c2o4)y3x – 2y (iron complex salt) is an instance of a product from synthesis experiments involving iron three (Fe3+ and oxalate (C2O42-).In this experiment, (Fe3+ and oxalate (C2O42 were synthesized in order form the iron oxalate salt. The first step involved preparing iron ii) oxalate through addition of C2O42- to an acidic solution. The following was the equation governing the process.
Iron iii oxalate ions were then formed from reacting, hydrogen peroxide, excess of the oxalate and an acid. From the reaction, iron iii oxalate precipitated from the product as a salt after addition of ethyl alcohol. In carrying out quantitative analysis of the iron iii oxalate, redox titration in order to distinguish between the species contained in the compound. Permanganate ion, was the perfect oxidizing agent to use in this experiment. Analysis also involved the use of EDTA , acting as a chelating agent, in the chelometric titration. This helped in quantitative analysis for iron.
10g of ferrous ammonium sulfate , together with 30 ml distilled water and 7 drops of 6M sulfuric acid were added to a beaker. The solution was stir followed by adding 50 ml of 1 M oxalic acid to the beaker. The mixture was heated to boiling, with a clean stirring rod inserted inside the beaker. The heating was stopped to let the precipitate settle to the bottom of the beaker. The precipitate was washed by adding 30 ml distilled water. 18 ml 2M potassium oxalate solution, was then added to the beaker containing the precipitate. The solution was titrated by slowy adding, to the beaker, 25 ml of 6% hydrogen peroxide from a burette supported with clamp and stand. The mixture heated to boiling while adding 9 ml H2C2O4 and then ...Download file to see next pagesRead More
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