Determine the empirical formula of an …
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Yogita Ingle 5 years, 2 months ago
Empirical formula of a compound may be defined as the formula which gives the simplest whole number ratio of the atoms of various elements present in one molecule of the compound.
Form the available data Percentage of iron = 69.9
Percentage of oxygen= 30.1 Total percentage of iron & oxygen= 69.9+30.1= 100%
Step 1 calculation of simplest whole number ratios of the elements
Element
Percentage
Atomic mass
Atomic ratio
Simplest ratio
Simplest whole no ratio
Fe
69.9
55.84
69.9/55.84=1.25
1.25= 1
2
O
30.1
16
30.1/16 = 1.88
1.88=1.5
3
Step 2 writing the empirical formula of the compound
The empirical formula of the compound = Fe2 O3
1Thank You