A sample of an iron ore was prepared for Fe3+ analysis as following: 3.4g of the sample was added and dissolved in acid environment then diluted to 250 mL using volumetric flask. After that, 10 mL of the resulting solution was transferred by pipet to a 50-mL volumetric flask and continue to be diluted. The scientists found out that this solution gives the concentration of Fe3+ as 2.3 mg/L. Find the weight percentage of Fe3+ in the original sample.

A sample of an iron ore was prepared for Fe3+ analysis as following: 3.4g of the sample was added and dissolved in acid environment then diluted to 250 mL using volumetric flask. After that, 10 mL of the resulting solution was transferred by pipet to a 50-mL volumetric flask and continue to be diluted. The scientists found out that this solution gives the concentration of Fe3+ as 2.3 mg/L. Find the weight percentage of Fe3+ in the original sample.

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter17: Complexation And Precipitation Reactions And Titrations

Section: Chapter Questions

Problem 17.31QAP

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