12:06 A *A * ll 68%iZoom vLeave• RECBreakoutRoomsGROUP WORKAn iron ore was analyzed by dissolving a 1.1324 gsample in concentrated HCI.The resulting solution was diluted with water and theiron (III) was precipitated as the hydrous oxideFe,O3.xH,O by the addition of NH3. After filtration andwashing, the residue was ignited at a high temperatureto give 0.5394 g of pure Fe,03 (159.69g/mol).Calculate (a) % Fe (55.847g/mol) and (b) %Fe,04(231.54g/mol) in the sample.•. 28UnmuteStart VideoShareParticipantsMoreII

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GROUP WORK An iron ore was analyzed by dissolving a 1.1324 g sample in concentrated HCI. The resulting solution was diluted with water and the iron (III) was precipitated as the hydrous oxide Fe,03.xH,O by the addition of NH3. After filtration and washing, the residue was ignited at a high temperature to give 0.5394 g of pure Fe,O3 (159.69g/mol). Calculate (a) % Fe (55.847g/mol) and (b) % Fe,04(231.54g/mol) in the sample.

GROUP WORK An iron ore was analyzed by dissolving a 1.1324 g sample in concentrated HCI. The resulting solution was diluted with water and the iron (III) was precipitated as the hydrous oxide Fe,03.xH,O by the addition of NH3. After filtration and washing, the residue was ignited at a high temperature to give 0.5394 g of pure Fe,O3 (159.69g/mol). Calculate (a) % Fe (55.847g/mol) and (b) % Fe,04(231.54g/mol) in the sample.

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter13: Titrations In Analytical Chemistry

Section: Chapter Questions

Problem 13.12QAP

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