1 tấn=100000kg
\(m_{Fe_3O_4}=1000000.90\%=900000\left(g\right)\)
\(\rightarrow n_{Fe_3O_4}=\dfrac{900000}{232}=\dfrac{112500}{29}\left(mol\right)\)
\(4CO+Fe_3O_4\rightarrow3Fe+4CO_2\)
\(\dfrac{112500}{29}\) \(\dfrac{337500}{87}\) (mol)
\(\rightarrow m_{Fe}=\dfrac{337500}{87}.56\approx217241,38\left(g\right)\approx217,24\left(kg\right)\)
b.
\(n_{Fe}=\dfrac{1000000}{56}=\dfrac{125000}{7}\left(mol\right)\)
\(4CO+Fe_3O_4\rightarrow3Fe+4CO_2\)
\(\dfrac{375000}{7}\) \(\dfrac{125000}{7}\) (mol)
\(\rightarrow m_q=\dfrac{375000}{7}.232.100:90=13809523\left(g\right)=13809,5\left(kg\right)\)
\(4CO+Fe_3O_4\rightarrow3Fe+4CO_2\)
\(4CO+Fe_3O_4\rightarrow3Fe+4CO_2\)
\(4CO+Fe_3O_4\rightarrow3Fe+4CO_2\)