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

Determine the empirical formula of an oxide of iron which has 69.9% ir

1.	Determine the empirical formula of an oxide of iron which has 69.9% iron and 30.1% oxygen by mass
Answer» Empirical formula:- Fe𝟸O𝟹