8.25 g of o samplo of iron ora iron (m) oxido, Fo0:] wore dissolvod in concentratod hydrochlorC acid and the solution diutodto 250 ml 25.0 ml of this solution was roduced to form a solution of iron() ions. This solution of iron (1) ions roquired 264 mi ofa00200 M potassium dichromato(vi) solution for completo oxidation back to iron(i) ions. The mass parcontogo of the ron inthe ora isx(Fo=55.845 g/mal).CrO+6Fo+14H2Cr+ GFe"+7H;0Experiment 3: Neutrolization Titrationif an unknown samplo of HPO was titratod with a10 M standard solution of NaOH using phonoiphthaloin indicator. O0 mt ofNOOH was noodod to roach the ond point. Tha mass of HyPO4 in this sample is98.0 g/mol)g (Molor moss of HyPOA

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8.25 g of a samplo of iron ora (iron (m) oxido, Fo-O:] wore dissolved in concentratad hydrochloric acid and the solution dilutod to 250 ml 25.0 ml of this solution was roduced to form a solution of iron() ions. This solution of iron (1) ions roquirod 284 mi of a00200 M potassium dichromato(vi) solution for compioto oxidation back to iron() ions. The mass parcontogo of the ron in the ore is x (Fo=55.845 g/mol) CrO+6Fo+14H 2Cr + GFe" +7H;0

8.25 g of a samplo of iron ora (iron (m) oxido, Fo-O:] wore dissolved in concentratad hydrochloric acid and the solution dilutod to 250 ml 25.0 ml of this solution was roduced to form a solution of iron() ions. This solution of iron (1) ions roquirod 284 mi of a00200 M potassium dichromato(vi) solution for compioto oxidation back to iron() ions. The mass parcontogo of the ron in the ore is x (Fo=55.845 g/mol) CrO+6Fo+14H 2Cr + GFe" +7H;0

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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Question

8.25 g of o samplo of iron ora iron (m) oxido, Fo0:] wore dissolvod in concentratod hydrochlorC acid and the solution diutod
to 250 ml 25.0 ml of this solution was roduced to form a solution of iron() ions. This solution of iron (1) ions roquired 264 mi of
a00200 M potassium dichromato(vi) solution for completo oxidation back to iron(i) ions. The mass parcontogo of the ron in
the ora is
x(Fo=55.845 g/mal).
CrO+6Fo+14H
2Cr+ GFe"+7H;0
Experiment 3: Neutrolization Titration
if an unknown samplo of HPO was titratod with a10 M standard solution of NaOH using phonoiphthaloin indicator. O0 mt of
NOOH was noodod to roach the ond point. Tha mass of HyPO4 in this sample is
98.0 g/mol)
g (Molor moss of HyPOA

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