Answer to Question #83576 in General Chemistry for ashley contreras

Question

5.000 g of iron (Fe) reacted with excess oxygen gas and 7.149 g of the product containing only iron and oxygen was produced.
(a) What is the percent by mass of Fe and the percent by mass of O in the compound?
(b) Whatistheempiricalformulaofthecompound?
(c) Why is the formula for an ionic compound always an empirical formula? Include examples to support your response.
(d) Ifonly2.000gofironhadbeenusedinthereaction,wouldtheexperimentalresultshavebeen different? Explain.

Answer 1

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