Determine 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% ir

1.	Determine the empirical formula of an oxide of iron which has 69.9% iron and 30.1% dioxygen by mass.
Answer» Solution : EMPIRICAL formula `=Fe_(2)O_(3)`