7/ A 0.8040-g sample of an iron ore was dissolved in acid. The iron was then reduced to Fe* and titrated with 47.22 mL of 0.1121 N (0.02242 M) KMnO, solution. Calculate the results of this analysis in terms of (a) percent Fe (55.847 g/mol) und (b) percent Fe;O4 (231.54 g/mol). The reaction of the analyte with the reagent is described by the equation MnOj; + 5Fe®* + SH* — Mn?* + 5Fe’* + 4H,
7/ A 0.8040-g sample of an iron ore was dissolved in acid. The iron was then reduced to Fe* and titrated with 47.22 mL of 0.1121 N (0.02242 M) KMnO, solution. Calculate the results of this analysis in terms of (a) percent Fe (55.847 g/mol) und (b) percent Fe;O4 (231.54 g/mol). The reaction of the analyte with the reagent is described by the equation MnOj; + 5Fe®* + SH* — Mn?* + 5Fe’* + 4H,
Chemistry & Chemical Reactivity
9th Edition
ISBN:9781133949640
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter22: The Chemistry Of The Transistion Elements
Section22.6: Colors Of Coordination Compounds
Problem 3Q
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Q7/ A 0.8040-g sample of an iron ore was dissolved in acid. The iron was then reduced to Fe* and titrated with 47.22 mL of 0.1121 N (0.02242 M) KMnO, solution. Calculate the results of this analysis in terms of (a) percent Fe (55.847 g/mol) und (b) percent Fe;O4 (231.54 g/mol). The reaction of the analyte with the reagent is described by the equation MnOj; + 5Fe®* + SH* — Mn?* + 5Fe’* + 4H,0
Transcribed Image Text:Q7/
A 0.8040-g sample of an iron ore was dissolved in acid. The iron was then
reduced to Fe2+ and titrated with 47.22 mL of 0.1121 N (0.02242 M) KMNO,
solution. Calculate the results of this analysis in terms of (a) percent Fe (55.847
g/mol) and (b) percent Fe;O, (231.54 g/mol). The reaction of the analyte with
the reagent is described by the equation
Mno, + 5FE2+ + SH+ Mn2+ + SFe+ + 4H,0
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