Question

[Bùi Thanh Tâm]

Cho \(C_2H_2\) Cháy trong \(O_2\) Tạo khí \(CO_3\) và 1,8g \(H_2O\). Tính \(V_{C_2H_2}=?\), \(V_{O_2}=?\),  \(V_{CO_2}=?\left(đktc\right)\)

Answer 1

[Minh Nhân]

\(n_{H_2O}=\dfrac{1.8}{18}=0.1\left(mol\right)\)

\(C_2H_2+\dfrac{5}{2}O_2\underrightarrow{t^0}2CO_2+H_2O\)

\(0.1.........0.25......0.2..........0.1\)

\(V_{C_2H_2}=2.24\left(l\right)\)

\(V_{O_2}=0.25\cdot22.4=5.6\left(l\right)\)

\(V_{CO_2}=0.2\cdot22.4=4.48\left(l\right)\)