In one gravimetric analysis, the iron (Fe) in a 1.6374 g of impure iron compound was dissolved with nitric acid, HNO3 to oxidize iron. The precipitate will be formed as hydrous compound. The precipitate was then filtered, rinsed and ignited at 900°C to give anhydrous Fe₂O3 weighed of 0.8994 g. Calculate the percentage by mass of Fe in a sample.

In one gravimetric analysis, the iron (Fe) in a 1.6374 g of impure iron compound was dissolved with nitric acid, HNO3 to oxidize iron. The precipitate will be formed as hydrous compound. The precipitate was then filtered, rinsed and ignited at 900°C to give anhydrous Fe₂O3 weighed of 0.8994 g. Calculate the percentage by mass of Fe in a sample.

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter12: Gravimetric Methods Of Analysis

Section: Chapter Questions

Problem 12.20QAP

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