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Monday, December 23, 2013

Analysing Iron Tablets

LAB REPORT. TITLE : ANALYSING IRON TABLETS INTRODUCTION: The particle exhort out is undercoat to be the fourth most bulky element in the earths crust. It is encountered in both biological system. Existing in 2 oxidation states Fe (ii) and Fe (iii), it is an important component of proteins. In humans, the majority of the protein found is in the hemoglobin is squeeze which totals to about 4-6 grams of iron. Obtained from dietary pabulum such(prenominal) ad vegetables, egg-yolk and causes anemia when deficient. compact tablets contain iron (ii) sulphate . This main aim of this experiment is to determine the percentage of iron in a sample of an iron salt. MATERIALS/APPARATUS: Beaker- 50cm3 volumetric Flask-250cm3 Conical Flask- Burette-50cm3 Pipette-25cm3 Diammonium Iron (ii) Sulphate 0.1M Sulphuric Acid 0.01M honey oil Manganate (vii) Beaker Digital remnant - 3. d.p METHOD: 5g of Diammonium iron (ii) sulphate is weighed and dissolve into 100cm3 of 0.1M Sulphuric Acid. The resolving was indeed poured into a 250cm3 volumetric flask including all the washings. The solution, was then made up to the 250cm3 mark with distilled water. RESULTS: duck 1 The table above shows the titer value when Iron solution was titrated against potassium Manganate (vii). slowness: The Equation for the reaction is: 5Fe2+ + MnO4- +8H+ ? 5Fe3+ + Mn2+ + 4H2O 1.
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No of counterspyes of MnO2 n = (C*V) V=0.03245 dm3 C= 0.01335Mol dm3 m 0.03245 dm3 * 0.01335 Mol dm3 = 4.33 * 10-4 2. No of Moles of Fe2+ in 25cm3 of the soluti on. 5Fe2+ + MnO4- +8H+ ? 5Fe3+ + Mn2+ + 4H2! O . From the above equation, 5 moles of Fe is formed for every(prenominal) 1 mole of Mno4 ? The number of moles of Fe= No of moles of MnO4- * 5 = 4.33 * 10-4 * 5= 2.166 * 10-4 3. In 25cm3 the no. of moles are= 2.166 * 10-4 In 250cm3 the no of moles of Fe = 2.166 * 10-4 * 5 = 0.02166 4. flock of Fe = n=m/m.m = ? m= n*m.m = 0.02166Moles * 56 g/mol = 1.213g Mass of FeSO4 n=m/m.m = ?...If you want to get a undecomposed essay, order it on our website: OrderCustomPaper.com

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