1.

1.60 g of oxide of iron on heationg in a stream of hydrogen gas is completly converted to 1.12 g of iron. Find the empirical formula of oxide

Answer»

The answer is Fe2O3Explanation: The mass of Fe is 1.12g and the mass of COMPOUND is 1.60g.Then, mass of OXYGEN in COMPUND is 0.48g.(1.60-1.12)Fe- 70%O2-30%atomic mass of fe is 56gatomic mass of oxygen is 16g.



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