Chapter 3, Problem 3.118CP

Interpretation Introduction

Interpretation:

The mass of Fe₂O₃ and FeO should be calculated in the original sample.

Concept introduction:

The mass of any compound in a given sample can be obtained with the help of its mass, number of moles and molar mass.
A formula used to find the relation between all the three is as follows:

$n=\frac{Mass}{Molarmass}$

Given:

Mass of mixture of Fe₂O₃ and FeO $=10.0g$

Mass of pure Fe-metal obtained from mixture $=7.43g$

To determine:

Mass Fe₂O₃ and FeO in the original sample mixture