Fe2O3 + 3H2 \(\underrightarrow{to}\) 2Fe + 3H2O
\(n_{Fe}=\frac{11,2}{56}=0,2\left(mol\right)\)
a) Theo pT: \(n_{Fe_2O_3}pư=\frac{1}{3}n_{H_2}=\frac{1}{2}\times0,2=0,1\left(mol\right)\)
\(\Rightarrow m_{Fe_2O_3}=0,1\times160=16\left(g\right)\)
b) Theo PT: \(n_{H_2}pư=\frac{3}{2}n_{Fe}=\frac{3}{2}\times0,2=0,3\left(mol\right)\)
\(\Rightarrow V_{H_2}pư=0,3\times22,4=6,72\left(l\right)\)
c) \(m_{Fe_2O_3}dư=40-16=24\left(g\right)\)
\(m_X=m_{Fe_2O_3}dư+m_{Fe}=24+11,2=35,2\left(g\right)\)
nFe = 11,2 / 56 = 0,2 (mol)
Fe2O3 + 3H2 → 2Fe + 3H2O (t\(^o\))
mol pư: 0,1.←0,3 ←0,2
a, Vậy : m(Fe2O3 bị khử) = 0,1 * 160 = 16 (gam)
b, Vậy : V(H2 pư) = 0,3 * 22,4 = 6,72 (lít)
c, m(X) = m(Fe) + mFe2O3(dư)
= 11,2 + 40 - 16
= 35,2 (gam)
nFe= 11.2/56=0.2 mol
Fe2O3 + 3H2 -to-> 2Fe + 3H2O
0.1______0.3_____0.2
mFe2O3(pư) = 0.1*160=16g
VH2= 0.3*22.4=6.72l
Cr X : Fe và Fe2O3 dư
mX= 11.2 + 40 - 16 = 35.2g