Gọi x,y lần lượt là số mol của Fe2O3, CuO
nCO = \(\dfrac{2,016}{22,4}=0,09\) mol
Pt: Fe2O3 + 3CO --to--> 2Fe + 3CO2
........x............3x...............2x
.....CuO + CO --to--> Cu + CO2
.......y..........y.................y
Ta có hệ pt:\(\left\{{}\begin{matrix}160x+80y=5,6\\3x+y=0,09\end{matrix}\right.\Leftrightarrow\left\{{}\begin{matrix}x=0,02\\y=0,03\end{matrix}\right.\)
=> %
nCO=2,016/22,4=0,09(mol)
Fe2O3+3CO--->2Fe+3CO2
x_______3x_____2x
CuO+CO--->Cu+CO2
y_____y_____y
Hệ pt:
\(\left\{{}\begin{matrix}160x+80y=5,6\\3x+y=0,09\end{matrix}\right.\Rightarrow\left\{{}\begin{matrix}x=0,02\\y=0,03\end{matrix}\right.\)
=>mFe2O3=0,02.160=3,2(g)
=>%fe2O3=3,2/5,6.100~57%
=>%CuO=100-57=43%
mFe=0,04.56=2,24(g)
mCu=0,03.64=1,92(g)
=>%mFe=2,24/4,16.100~54%
=>%mCu=100-54=46%