
Concept explainers
(a)
Interpretation:
The percent composition of iron in
(a)

Explanation of Solution
The percent composition of any substance is calculated by dividing the mass of substance in a sample by total mass of the sample. This ratio is multiplied by
To determine the percent composition let the
The mass of Fe from periodic table is
The mass of O from periodic table is
Therefore, the total mass for
Now, the percent composition of Fe is,
(b)
Interpretation:
The percent iron in
(b)

Explanation of Solution
To determine the percent composition let the sample size be
The mass of Fe from periodic table is
The mass of O from periodic table is
Therefore, the total mass for
Now, the percent composition of Fe is,
(c)
Interpretation:
The percent iron in
(c)

Explanation of Solution
To determine the percent composition, let the sample size be
The mass of Fe from periodic table is
The mass of O from periodic table is
Therefore, the total mass for
Now, the percent composition of Fe is,
(d)
Interpretation:
The percent iron in
(d)

Explanation of Solution
To determine the percent composition, let the sample size be
The mass of Fe from periodic table is
The mass of C from periodic table is
The mass of O from periodic table is
Therefore, the total mass for
Now, the percent composition of Fe is,
Out of all the iron minerals, wustite
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