Iron was analyzed by dissolving 1.1324 g sample in concentrated HCL The solution was diluted in H20, Fe(lII) was precipitated as Fe2O3.H20 by adding NH3. After filteration, washing the residue ignited to give 0.2697 g of pure Fe2O3 (159.69 g/mol). Calculate %Fe (55.847g/mol) in the sample. O 16.66 % O 69.12 % O 54.21 % 45.21 % 33.32 %

Iron was analyzed by dissolving 1.1324 g sample in concentrated HCL The solution was diluted in H20, Fe(lII) was precipitated as Fe2O3.H20 by adding NH3. After filteration, washing the residue ignited to give 0.2697 g of pure Fe2O3 (159.69 g/mol). Calculate %Fe (55.847g/mol) in the sample. O 16.66 % O 69.12 % O 54.21 % 45.21 % 33.32 %

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter12: Gravimetric Methods Of Analysis

Section: Chapter Questions

Problem 12.20QAP

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