A 4.510 g rock sample is dissolved in strong acid and treated with a reducing agent so that all the iron is completely transformed into Fe2+. The Fe2* is completely oxidized by 28.10 mL of a 0.0530 M solution of KMNO4. Calculate the amount of iron (in grams) and its mass percentage in the rock sample. MnO4 (ag) + Fe2* (ag) Mn2+ (ag) + Fe3+ (ag) MM: KMNO4 = 158.03 Fe = 55.85 %3D
A 4.510 g rock sample is dissolved in strong acid and treated with a reducing agent so that all the iron is completely transformed into Fe2+. The Fe2* is completely oxidized by 28.10 mL of a 0.0530 M solution of KMNO4. Calculate the amount of iron (in grams) and its mass percentage in the rock sample. MnO4 (ag) + Fe2* (ag) Mn2+ (ag) + Fe3+ (ag) MM: KMNO4 = 158.03 Fe = 55.85 %3D
Chemistry: Principles and Reactions
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ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:William L. Masterton, Cecile N. Hurley
Chapter4: Reactions In Aqueous Solution
Section: Chapter Questions
Problem 71QAP: Calcium in blood or urine can be determined by precipitation as calcium oxalate, CaC2O4. The...
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