\(n_{C_2H_2}=\dfrac{6.72}{22.4}=0.3\left(mol\right)\)
\(n_{O_2}=\dfrac{11.2}{22.4}=0.5\left(mol\right)\)
\(C_2H_2+\dfrac{5}{2}O_2\underrightarrow{t^0}2CO_2+H_2O\)
\(Bđ:0.3.......0.5\)
\(Pư:0.2........0.5.........0.4.........0.2\)
\(Kt:0.1..........0..........0.4...........0.2\)
\(V_{CO_2}=0.4\cdot22.4=8.96\left(l\right)\)
\(V_{C_2H_2\left(dư\right)}=0.1\cdot22.4=2.24\left(l\right)\)
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