Answer to Question #155510 in Chemistry for Sage Topaz

Question

Calculate, the mass in grams, the amount of Fe₂O₃ produced if 14.0 g oxygen is used. (Check the equation below)

O₂ + Fe → Fe₂O₃

Answer 1

Balanced equation looks like

3 O₂ + 4 Fe -------> 2 Fe₂O₃

Therefore, 3 moles O₂ gives two moles Fe₂O₃

In terms of weight,

96 g of O₂ gives 320g Fe₂O₃

Therefore, 14 g O₂ will give 46.67g Fe₂O₃