An iron oxide is 72.4% in iron. Its empirical formula is ________.

Name: An iron oxide is 72.4% in iron. Its empirical formula is ________.
Brand: Quizplus
Rating: 5.0 (54 reviews)

Question

Quizplus · Accepted Answer

The empirical formula of iron oxide with 72.4% iron would be Fe₃O₄. This is because Fe₃O₄ has a molar mass of 232.56 g/mol, with 72.4% of that being 168.2 g/mol. The molar mass of Fe₃O₄ can be divided by 168.2 g/mol to get the empirical formula. Therefore, the answer is D, Fe₃O₄.

An Iron Oxide Is 72