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.
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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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,O3.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,03 (159.69g/mol).
Calculate (a) % Fe (55.847g/mol) and (b) %
Fe,04(231.54g/mol) in the sample.
•. 28
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Transcribed Image Text:12:06 A *
A * ll 68%i
Zoom v
Leave
• REC
Breakout
Rooms
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,O3.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,03 (159.69g/mol).
Calculate (a) % Fe (55.847g/mol) and (b) %
Fe,04(231.54g/mol) in the sample.
•. 28
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