Question

Fe2O3(s) + 3CO(g) → 2Fe(s) + 3CO2

What mass of carbon monoxide is needed to react with 1.80g Fe2O3

Answer 1

Mass of carbon monoxide : 0.95 g

Further explanation

A reaction coefficient is a number in the chemical formula of a substance involved in the reaction equation. The reaction coefficient is useful for equalizing reagents and products.

Reaction

Fe₂O₃(s) + 3CO(g) → 2Fe(s) + 3CO₂

MW Fe₂O₃ : 159,69 g/mol

mol Fe₂O₃ :

`\tt (1.8)/(159.69)=0.0113`

mol ratio Fe₂O₃ : CO = 1 : 3, so mol CO :

`\tt 3* 0.0113=0.0339`

mass CO (MW = 28,01 g/mol) :

`\tt m=mol* MW\\\\m=0.0339* 28.01\\\\m=0.950~g`