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Determine the empirical formula of an ox...

Determine the empirical formula of an oxide of iron which has `69.9%` iron and `30.1%` dioxygen by mass.

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Detennine the empirical formula of an oxide of iron which has 69.9% iron and 30.1% dioxygen by mass.

Determine the empirical formula of an oxide of iron which has 69.9% iron and 30.1% oxygen by mass. (Atomic mass : Fe = 55.85 amu, O = 16.00 amu).

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.

What is the molecular formula of an oxide of iron in which the mass per cent of iron and oxygen are 69.9 and 30.1 respectively and its molecular mass is 160. *

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Choose the molecular formula of an oxide of iron in which the mass per cent of iron and oxygen are 69.9 and 30.1 respectively and its molecular mass is 160.

Determine the empirical formula of a compound having percentage composition as : Iron = 20% , sulphur = 11.5% , oxygen = 23.1% and water molecules = 45.4% -(At. mass of Fe = 56, S = 32)

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