a, \(Fe_2O_3+3H_2\underrightarrow{t^o}2Fe+3H_2O\)
b, \(n_{H_2}=\dfrac{49,58}{24,79}=2\left(mol\right)\)
Theo PT: \(n_{Fe}=\dfrac{2}{3}n_{H_2}=\dfrac{4}{3}\left(mol\right)\)
\(\Rightarrow m_{Fe}=\dfrac{4}{3}.56=\dfrac{224}{3}\left(g\right)\)
Đúng 3
Bình luận (0)