LAB REPORT. TITLE : ANALYSING IRON TABLETS INTRODUCTION: The particle insistency out is embed to be the fourth most verdant element in the earths crust. It is encountered in each(prenominal) 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 conjure which totals to about 4-6 grams of iron. Obtained from dietary nutrient such(prenominal) ad vegetables, egg-yolk and causes anemia when deficient. agitate 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 jet Manganate (vii) Beaker Digital remnant - 3. d.p METHOD: 5g of Diammonium iron (ii) sulphate is weighed and dis solve into 100cm3 of 0.1M Sulphuric Acid. The resolving was indeed poured into a 250cm3 volumetric flaskful including all the washings. The solution, was then made up to the 250cm3 mark with distilled water. RESULTS: put off 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. 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 solution. 5Fe2+ + MnO4- +8H+ ? 5Fe3+ + Mn2+ + 4H2O . From the above equation, 5 moles of Fe is formed for every 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. chain reac tor of Fe = n=m/m.m = ? m= n*m.m = 0.0! 2166Moles * 56 g/mol = 1.213g Mass of FeSO4 n=m/m.m = ?...If you want to get a dear essay, order it on our website: OrderCustomPaper.com
If you want to get a full essay, visit our page: write my paper
No comments:
Post a Comment