An iron ore was analyzed by dissolving a 2.9912-g sample in concentrated HCI. The resulting solution was diluted with water, and the iron(IlI) was precipitated as the hydrous oxide Fe203-XH20 by the addition of NH3. After filtration and washing, the residue was ignited at a high temperature to give 0.8394 g of pure Fe203 (159.69 g/mol). If the sample came from an extracted ore that is 50 kg in total, how much iron can be extracted from it? A 9.815 g Fe B 9.815 kg Fe 13.94 g Fe 13.94 kg Fe
An iron ore was analyzed by dissolving a 2.9912-g sample in concentrated HCI. The resulting solution was diluted with water, and the iron(IlI) was precipitated as the hydrous oxide Fe203-XH20 by the addition of NH3. After filtration and washing, the residue was ignited at a high temperature to give 0.8394 g of pure Fe203 (159.69 g/mol). If the sample came from an extracted ore that is 50 kg in total, how much iron can be extracted from it? A 9.815 g Fe B 9.815 kg Fe 13.94 g Fe 13.94 kg Fe
Chemistry by OpenStax (2015-05-04)
1st Edition
ISBN:9781938168390
Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Chapter19: Transition Metals And Coordination Chemistry
Section: Chapter Questions
Problem 11E: Iron (II) can be oxidized to iron (III) by dichromate ion, which is reduced to chromium (III) in...
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Transcribed Image Text:An iron ore was analyzed by dissolving a 2.9912-g sample in concentrated HCl. The resulting solution was diluted with
water, and the iron(III) was precipitated as the hydrous oxide Fe203-XH2O by the addition of NH3. After filtration and
washing, the residue was ignited at a high temperature to give 0.8394 g of pure Fe203 (159.69 g/mol).
If the sample came from an extracted ore that is 50 kg in total, how much iron can be extracted from it?
A 9.815 g Fe
9.815 kg Fe
13.94 g Fe
13.94 kg Fe
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