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Determine the molecular formula of an ox...

Determine the molecular formula of an oxide of iron in which the mass percent of iron and oxygen are `69.9` and `30.1`, respectively.

A

FeO

B

`Fe_3O_4`

C

`Fe_2O_3`

D

`FeO_2`

Text Solution

AI Generated Solution

To determine the molecular formula of the oxide of iron based on the given mass percentages of iron and oxygen, we can follow these steps: ### Step 1: Assume a Total Mass Assume a total mass of the compound to be 100 grams. This simplifies the calculations since the mass percentages can be directly converted to grams. - Mass of Iron (Fe) = 69.9 grams - Mass of Oxygen (O) = 30.1 grams ...
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