Fe can be produced if 120 g of Al is used

How many grams of Fe can be produced

when 120 g of Al is reacted with an excess supply of Fe2O3?

Fe2O3 + 2Al → 2Fe + Al2O3

What mass of Fe is generated when 120 g of Al are reacted?

Fe2O3(s) + 2Al(s) → 2Fe(s) + Al2O3(s)

(Assuming excess Fe2O3)

> Al의 몰질량 = 26.98 g/mol

> Fe의 몰질량 = 55.85 g/mol

생성물 Fe의 질량을 질량비로 계산하면,

( 참고: 질량비로 계산 https://ywpop.tistory.com/22115 )

2Al : 2Fe = 2(26.98) : 2(55.85) = 120 g : ? g

? = 2(55.85) × 120 / (2(26.98)) = 248.41 g Fe

답: 248 g

[키워드] 질량비로 계산 기준, 화학량론 기준, 2Al + Fe2O3 반응 기준